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The INTERNET Database of Periodic Tables

There are thousands of periodic tables in web space, but this is the only comprehensive database of periodic tables & periodic system formulations. If you know of an interesting periodic table that is missing, please contact the database curator: Mark R. Leach Ph.D.

Use the drop menus below to search & select from the more than 1300 Period Tables in the database: 

  Text Search:       


Periodic Tables from the years 2010 - 2019, by date:

2010   Periodic Arch of The Elements
2010   3-D Strange Periodic Table
2010   Marks & Marks: Newlands Revisited
2010   Keaggy's Periodic Table of Periodic Tables
2010   Tai Chi Periodic Table
2010   Recipe For A Human Shirt
2010   Jovanovic's 2D Periodic Table
2010   Fahimi Formulations
2010   Vajra's Periodic Table
2010   Pauling's Spheron Periodic Table
2010   Bing Periodic Table
2010   Pyykkö's Extended Elements
2010   Harrison's Spiral Periodic Table
2010   Spiral of Atoms and Their Periodic Table
2010   Cartogram Periodic Tables
2010   Scandium Group and The Periodic Table
2010   Upper Limit in Mendeleev's Periodic Table - Element No.155
2010   World's Smallest Periodic Table
2010   Discovery of Tennessine
2010   Khipu or Quipu Periodic Table
2010   Circular Periodic Table of Elements
2010   Newlands Revisited - Poster
2010   Schwarz & Rich's Periodic Table
2010   Harrington's Projection for The 270 AMU Structure
2010   Neutronic Schema of the Elements
2011   Weise's Tetrahedron
2011   Tresvyatskii's Periodic Table
2011   Bayeh's Theoretical Periodic Table of Elements
2011   Bayeh's Theoretical 3D Periodic Tables
2011   Stowe-Janet-Scerri Periodic Table
2011   Aldersley 3D Periodic Table
2011   Piazzalunga's Circular Periodic Table
2011   Pacholek's Multipipe 3D Periodic Table
2011   Alper's Simplified Periodic Table: Elements Ordered By Their Sub-Shell
2011   Makeyev's Periodic Table
2011   Fractional Janet Left-Step Periodic Chart
2011   Wikipedia Long Form Periodic Table
2011   Alashvili Rotating Spherical Periodikal Tabel
2011   Normal vs Correction Shell "Pi Paradox" for 1-270 AMUs
2011   Elements Known in the Year 2011
2011   Suggested Periodic Table Up To Z r 172, Based on Dirac-Fock Calculations
2012   Compact Mendeleev-Moseley-Seaborg Periodic Table (CMMSPT)
2012   Srivaths-Labarca's Periodic Table
2012   Alexander Arrangement of Elements, 3D Illustrated
2012   Vortic Periodic Table in Marquetry
2012   Makeyev's Verticle Form Periodic Table
2012   Wheelshaped Table of Elements
2012   Bettermann Periodic Table
2012   Piazzalunga's Pyramidal Periodic Table Formulations
2012   Eric Scerri Lecture, Dedicated to Fernando Dufour
2012   Mathematical Expression of Mendeleev's Periodic Law
2012   Zigzag Periodic Table
2012   Eggenkamp's Periodic Table
2012   JR's Chemistry Set
2012   Magnetic Periodic Table
2012   Schematic Periodic Table of Double-Charged Cations
2012   Extended Periodic Table - Alternative
2012   Three Different Long-Form, or 32-Column, Periodic Tables
2012   Rihani's 120 Element Periodic Table Formulations
2012   Ato Circular Periodic Table
2013   Twin Spiral Pi Trinomial - Based Periodic Table
2013   Macro-Valence Cells vs Jovian Image and Red Spot Location Periodic Table
2013   Fattah's Periodic Table
2013   7 Elemental Chemical Synthesis
2013   Electronegativity Chart (Leach)
2013   MCAS Electron Orbital Filling
2013   Higgs Boson and Fundamental Particle/Force Periodic Tables
2013   Fattah's Extended Periodic Table
2013   Proton Configuration Periodic Table
2013   4D Stowe-Janet-Scerri Periodic Table
2013   Shapes Periodic Table
2013   3D Left Step Periodic Table
2013   From Periodic Properties to a Periodic Table Arrangement
2013   Periodic Pyramid
2013   Bernard Periodic Spiral
2013   Underground Map of the Elements
2013   Matrix Series Periodic Table
2013   Music Notes of Periodic Table
2013   Averaged Ionisation Potential Periodic Table
2013   Model Wooden Periodic Table
2013   Muradjan's Mathematical Structure of The Periodic Table
2013   Atomic Periodic Town
2013   Periodic Pyramid
2013   Ye Olde Periodic Table
2013   Labarca & Zambon's Formulation
2014   Lado's Periodic Table Series Analysis
2014   Jodogne's Janet New Color Periodic Table
2014   Jodogne's New Color Table
2014   ADOMAH Periodic Table Glass Cube
2014   Samanez's Binodic Form of the Periodic Table (Video)
2014   Cross Periodic Table
2014   Zambon's Periodic Table Based on Triads
2014   Eadie's Periodic Electron Configuration
2014   Chandra's Polar Plot Periodic Table
2014   Metallic Character Table
2014   Janet Rajeuni
2014   UVS Periodic Tables
2014   Clock Periodic Table
2014   Belikov's Modular Periodic Table of Chemical Elements
2014   Jodogne's Janet New Colour Periodic Table
2014   Muradjan's New Notation Scheme
2014   Arrangement of Elements 7th Order & Element Sequences
2014   Schaeffer's IUPAC Periodic Table Quantum Mechanics Consistent
2015   UVS Periodic Table Model of a Klein Bottle Topology
2015   Quantum Fold Periodic Table
2015   ADOMAH Periodic Table and Normal Distribution
2015   Pams' Quantum Periodic Table
2015   Heart Periodic Table
2016   Mystery of Matter: Three Videos
2016   Russian Orthodox Elementary System of Unity of the Periodicity of the Electroatoms of the Universe
2016   Genoma de la Materia
2016   Valentine Periodic Table
2016   NAWA's byobu-Janet Periodic Table
2016   Advanced Spiral Periodic Classification of the Elements
2016   Triadic Networks
2016   Clock Face Periodic Table
2016   Sensu Periodic Table
2016   KAS Periodic Table
2016   Harrington's Periodic Tables
2016   Lindsay's Periodic Table
2016   Complete Periodic Table Chemistry Clock: H to Og
2016   Instructables 3D Periodic Table
2017   Restrepo's Similarity Landscape
2017   Elements Known and now Named in the Year 2017
2017   Kurushkin's Spiral Periodic Table
2017   Alternative Periodic Table
2017   New Rendering of ADOMAH Periodic Table
2017   NAWA's Periodic Tables
2017   Stowe's A Physicist's Periodic Table UPDATED
2017   Clock Prism Periodic Table, Braille Version
2017   Stewart's Chemosphere
2017   Moran's Periodic Spiral (updated)
2018   First Ionisation Energy to the Standard Form Periodic Table
2018   Stowe-Janet-Scerri Periodic Table (Extended)
2018   Chemical Galaxy III
2018   Hoyau's Periodic Table Formulations
2018   Race to Invent the Periodic Table
2018   Nawa–Scerri Octagonal Periodic System
2018   Nawa's 3-D Octagonal Pillar
2018   Scerri's Reverse Engineered Version of Mendeleev's Eight Column Table
2018   Telluric Remix
2018   Sistema Periódico Binodico
2018   Puddenphatt & Monagham Periodic Table
2018   Periodical System (Binodic Form): a new mathematical paradigm
2018   Beylkin's Periodic Table of The Elements
2018   Ziaei's Circular Periodic Table
2018   Nawa's V.E.T. Periodic Table & Hourglass
2018   Janet's Left-Step with Ground Level Microstates
2018   ADOMAH Periodic Table Formulation with NIST Data
2018   Elements in Six Dimensions
2018   Simpson's 4-Dimensional Version of the ADOMAH Periodic Table
2018   Kurushkin's 32-Column Periodic Table & Left-step Periodic Table United
2018   IUPAC Periodic Table of The Elements
2018   Short Form of Mendeleev’s Periodic Table of Chemical Elements
2019   5 Periodic Tables We Don't Use (And One We Do)
2019   Papers of Mendeleev, Odlings, Newlands & Chancourtois from the 1860s
2019   Chemical Bonds, Periodic Table of
2019   Slightly Different Periodic Table
2019   Béguyer de Chancourtois' Vis Tellurique: A Better View
2019   Frog Periodic Table
2019   Group 3 of The Periodic Table
2019   Janet Rejuvenated: Stewart-Tsimmerman-Nawa
2019   Chavhan's Third Generation Periodic Table of the Elements
2019   Meyer's NYT Graphic
2019   Where Mendeleev Was Wrong
2019   Samanez's Binodic Periodic System, New Mathematical Paradigm Poster
2019   Mendeleev 150
2019   International Year of the Periodic Table with Eric Scerri
2019   Scott Van Note Periodic Table Sculpture
2019   C&EN No Agreement
2019   Alexander Arrangement Unwrapped... and Rewrapped
2019   Weise's Tetrahedral Periodic Table
2019   Cylindrical Periodic Table of Elements
2019   Physical Origin of Chemical Periodicities in the System of Elements
2019   Global Periodic Table
2019   Colburn's 2019 Periodic Table of The Elements
2019   International Year of the Periodic Table with Eric Scerri
2019   Elements & Anti-Elements (Atom-to-Adam)
2019   Tasset's Version of Schaltenbrand
2019   Vernon's Oxidation Number Periodic Table
2019   IUPAC Periodic Table Challenge: Nobelium Contest
2019   Leach's Empirical Periodic Table
2019   UCLA Periodic Table (Proposed)
2019   Möbius-Escher Periodic Table
2019   ElementBook Braille version of the AAE
2019   Kid's Periodic Table
2019   Döbereiner Revisited
2019   Archetypes of Periodic Law
2019   Telluric Remix in Colour
2019   Periodic Table of the Elements Coloring Book
2019   Grainger's Elemental Periodicity with "Concentric Spheres Intersecting Orthogonal Planes" Formulation
2019   Schaltenbrand's Helical Gathering of the Elements
2019   Poliakoff's Inverted Periodic Table
2019   Moran's Periodic Spiral (2019)
2019   NAWA's Version of Moran's Periodic Spiral
2019   Stewart's Quantahedron Formulation


Year:  2010 PT id = 277

Periodic Arch of The Elements

Cynthia K. Whitney of Galilean Electrodynamics writes: "In his paper Explaining the periodic table, and the role of chemical triad, Eric Scerri mentioned the existence of at least four different candidate places for Hydrogen: Group 1 (alkali metals - Lithium, etc.), Group 17 (halogens - Fluorine, etc.), Group 14 (Carbon, etc.), or off the Periodic Table entirely, because it is so odd! The four-fold multiplicity (and maybe more) of candidate places for Hydrogen triggered in me the following thought: the excessive multiplicity of candidate places may have to do with the rectangular nature of the Periodic Tables under consideration there." Read more in this pdf file.

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Year:  2010 PT id = 279

3-D Strange Periodic Table

As Lewis Page of The Register puts it: "Top flight international reverse-alchemy boffins say they have managed to transmute gold into an entirely new form of 'negatively strange' antihypernucleic antimatter...", here.

The effect is to add a third dimension of quark strangeness to the periodic table. Read the abstract by the STAR Collaboration.

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Year:  2010 PT id = 283

Marks & Marks: Newlands Revisited

Marks & Marks – The Marks bros. – published "A periodic table explicitly for chemists rather than physicists. It is derived from Newlands’ columns. It solves many problems such as the positions of hydrogen, helium, beryllium, zinc and the lanthanoids but all within a succinct format."   email here

E. G. Marks & J. A. Marks, Newlands revisited: a display of the periodicity of the chemical elements for chemists, Found Chem (2010).

 

 

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Year:  2010 PT id = 304

Periodic Table of Periodic Tables

Keaggy, of www.keaggy.com, has put together a rather cool 'Periodic Table of Periodic Tables', clearly using this web site as one of the major resources:

 

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Year:  2010 PT id = 319

Tai Chi Periodic Table

Joyous Wong, , a student at the Hebei Normal University, China presents a periodic table based on the Chinese cultural background of Tai Chi:

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Year:  2010 PT id = 325

Recipe For A Human Shirt

By Sean Fallon and available from Fashionably Geek, A Recipe For Humans Shirt:

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Year:  2010 PT id = 342

Jovanovic's 2D Periodic Table

Jovanovic's 2D Periodic Table is based on the atomic number Z and the electron configuration of the elements. There is a full explanatory pdf file on the website:

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Year:  2010 PT id = 350

Fahimi Formulations

Peyman Fahimi has posted some periodic table formulations to www.img98.com, these can be found here, here, here, here & here:

The two most interesting are are shown below:

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Year:  2010 PT id = 351

Vajra Periodic Table

The Vajra Periodic Table, which can be found at APM Periodic Tables, lays out according to electron orbitals and thus gives insights into the electron structure surrounding the nucleus. The nucleus organizes with different rules and thus a different periodic table is needed to visualize the nuclear bindings:

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Year:  2010 PT id = 352

Pauling Spheron Periodic Table

The Pauling Spheron Periodic Table, can be found at APM Periodic Tables.

Linus Pauling was a brilliant physicist who tended to think outside the mainstream. One of his many contributions to science was his spheron model for the nucleus. The word "spheron" does not mean the nucleus is spherical (although it may be), it refers to Pauling's idea that clusters might form in the nucleus. For example, a nucleus may contain a stable helium nucleus within a larger uranium nucleus. Thus, when uranium decays, it releases a helium atom. Other elements, such as oxygen, may also cluster within larger elements. This makes sense since certain atoms like helium and oxygen are more strongly bound than other elements:

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Year:  2010 PT id = 354

Bing Periodic Table

Microsoft's Bing search engine has a rather extensive way of finding element data & information that avoids any formal PT representation:

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Year:  2010 PT id = 355

Pyykkö's Extended Elements

From an RSC new page: Pekka Pyykkö at the University of Helsinki has used a highly accurate computational model to predict electronic structures and therefore the periodic table positions of elements up to proton number 172 - far beyond the limit of elements that scientists can currently synthesise.

From the paper, A suggested periodic table up to Z = 172, based on Dirac-Fock calculations on atoms and ions:

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Year:  2010 PT id = 357

Harrison Spiral Periodic Table

This spiral, inspired by Stewart's Chemical Galaxy, is based on the modern periodic table with the elements strictly arranged in the increasing order of their atomic number and in accordance with their electron configurations.

The spiral separates the elements into the eight dominant 'A' groups of normal elements, and the eight corresponding 'B' subgroups of transitional and inner transitional elements, which have been incorporated as the inner spiral. The organisation of the elements closely follows H.G. Deming's 1923 Periodic Table where A B numeration was first utilized to correspond the characteristic oxides of the 'B' groups to those of the 'A' groups. The result of this design places Group VIII, the triads Fe, Co, Ni, etc. as a subgroup of Group 0 (or 18 Helium Group) which conflicts with some modern periodic tables, though broadly agrees with Deming's original proposal (VIIIA and VIIIB).

Hydrogen, which generally cannot be considered as part of any group, has been placed with the Fluorine group VII which appears its natural place in the spiral. Common names have been used where practicable to make the table more educational and reader-friendly. Element symbols have been included in the expanded poster of this table.

Look at a larger PDF.

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Year:  2010 PT id = 358

Spiral of Atoms and Their Periodic Table

Page 8 of my website (in Russian) shows The Spiral of Atoms and Their Periodic Table, which depicts a spiral disk of atoms with a periodic table of their relative masses.

This information clarifies the options published in the editions of my book The Axiomatics of Nature (2007-2009). Mark Adelman Samuilovich (Mark S. Eidelman)

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Year:  2010 PT id = 362

Cartogram Periodic Tables

Webelements have produced a poster with various atomic & elemental properties represented in cartographic form. From the Webelements shop:

"Periodic table cartograms are periodic table grids distorted using a computer algorithm so that the areas of the element squares are in proportion to a periodic table property. This is the first poster to show periodic properties plotted in this way".

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Year:  2010 PT id = 371

Scandium Group and The Periodic Table: Sc, Y, Lu, Lr   or   Sc, Y, La, Ac?

Pieter Thyssen and Koen Binnemans discuss (CRC Handbook on the Physics and Chemistry of Rare Earths, Chapter 248. Accommodation of the Rare Earths in the Periodic Table: A Historical Analysis) the confusion surrounding the members of and the positioning of the scandium group. There are three forms commonly used.

A medium-long form and long form depiction of the 15LaAc periodic table. As should be clear from the long form periodic table, an intermingling occurs between the f-block and d-block:

 

A medium-long form and long form depiction of the 14CeTh periodic table. The d-block has been torn apart in the long form, due to the insertion of the f-block:

 

A medium-long form and long form depiction of the 14LaAc periodic table. The 14LaAc periodic table is in perfect agreement with the Madelung rule:

A recent graphic posted by Eric Scerri:

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Year:  2010 PT id = 375

Upper Limit in Mendeleev's Periodic Table - Element No.155

This book (PDF), by Albert Khazan, represents a result of many-year theoretical research, which manifested hyperbolic law in Mendeleev's Periodic Table.

According to [Khazan's] law, an upper limit (heaviest element) exists in Mendeleev's Table, whose atomic mass is 411.66 and No.155. It is shown that the heaviest element No.155 can be a reference point in nuclear reactions. Due to symmetry of the hyperbolic law, the necessity of the Table of Anti-Elements, consisting of anti-substance, has been predicted. This manifests that the found hyperbolic law is universal, and the Periodic Table is common for elements and anti-elements.

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Year:  2010 PT id = 377

World's Smallest Periodic Table

The World's Smallest Periodic Table:

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Year:  2010 PT id = 897

Discovery of Tennessine

Ts

Tennessine, atomic number 117, has a mass of 292 au.

Synthetic radioactive element.

Tennessine was first observed in 2010 by Y. Oganessian et al.

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Year:  2010 PT id = 388

Khipu or Quipu Periodic Table

The Khipu or Quipu or Talking Knot Periodic Table, developed by Julio Antonio Gutierrez Samanez.

Google translated from the Spanish pdf file:

"As a result of bringing together each pair of periods in a single function or binod, the author has found a new regular on the subject, which has been defined as a new quantum number, since the number of orders or regulations binod growth elements in the table, under the appearance of pairs of new types of quantum structures or periods whose organization responds to a simple mathematical function: a parable of the type Y = 4 X ^ 2 - In this case report: a) That the strings correspond to pairs of periods or binod and knots are double for items with orbital s (in red), six nodes for p in orange, 10 yellow d knots and 14 knots for green f . b) That in each binod or rope, appear regularly in pairing mode or dual, new quantum or orbital structures, such as moving from within the orbital previous binod.":

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Year:  2010 PT id = 399

Circular Periodic Table of Elements

Michael Paukner's circular periodic table is one alternative to the standard periodic table of the elements:

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Year:  2010 PT id = 673

Newlands Revisited – Poster

At the beginning of last year (Meyers, 2009), a IUPAC editorial offered "something old, something new, something borrowed and something blue".

Marks and Marks 2010 (M&M) preserves the old subgroups (Newlands' columns) that were a feature of all short forms, although M&M would then have been described as a 'medium form' (14 groups) in contrast to Mendeleyev's 'short form' (8 groups) or Werner's 'long form' (32 groups). M&M naturally continues the grouping of the lanthanoids/actinoids whose initial four groups were also included in 'short form' tables.

The logic of the arrangement of the s-elements is a new feature. It recognizes the chemical subgroups of hydrogen, viz. the alkali metals and the halogens, and of helium, viz. the alkaline earth metals and the inert gases. It is interesting to note that subgroups differ chemically from each other inversely as the azimuth, i.e. Li:F > Ca:Zn > La:Lu.

The whole idea is, of course, borrowed from Newlands. The group numbers are borrowed from valency but also from electronic structure in that the number of s, p, d, or f subgroups corresponds to the Pauli maximum for each. Finally, the mnemonic reflects that most elementary introduction to chemistry: alkalis turn Litmus blue.

From this start, the p-bloc is red, the transition elements yellow and the "rare earth" elements green, as argued in the M&M paper. The numbering of groups I - XIV is unambiguous, it is less than IUPAC's arbitrary 18 groups, it preserves subgroups and satisfactorily accommodates hydrogen and the lanthanoids/actinoids.

As required by Leigh (2009), this table is clear, simple and brief.

Newlands Revisited

GJ Leigh "Periodic Tables and IUPAC" Chemistry International 2009, 31: 4-6. EG Marks & JA Marks "Newlands Revisited: a periodic table for chemists" Foundations of Chemistry 2010, 12: 85-93. F Meyers "From the Editor" Chemistry International 2009, 31:1-2.

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Year:  2010 PT id = 1195

Schwarz & Rich's Periodic Table

W. H. Eugen Schwarz & Ronald L. Rich, Theoretical Basis and Correct Explanation of the Periodic System: Review and Update, J. Chem. Educ. 2010, 87, 4, 435-443. DOI: https://doi.org/10.1021/ed800124m

Periodic table, representing some aspects of the periodic system of chemical elements (mainly to support the discussions in [the attached] article, perhaps not for the classroom):

Note that the richness of chemistry sometimes prevents clear-cut classifications and assignments.

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Year:  2010 PT id = 469

Harrington Projection for The 270 AMU Structure

From Bill Harrington, Founder/CTO of Rainforest Reactor Research and Temporal Dynamics Laboratory, comes a Harrington Projection for The 270 AMU Structure :

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Year:  2010 PT id = 507

Neutronic Schema of the Elements

The Neutronic Schema of the Elements, with LATIN NOTATION by Families and Groups, by Earth/matriX, Science Today, 11" x 17" laminated, color, shows each element of the periodic table with its notation in Latin letters instead of their historically accidental names and symbols:

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Year:  2011 PT id = 775

Weise's Tetrahedron

Dmitry Weise shows how it is possible to go from the Janet [left-step] periodic table formulation, to a tetrahedral formulation.

Dmitry writes:

"Three-dimensional table of the periodic law can be constructed in the form of a tetrahedron having an inner order. A comparison of the tetrahedron shells and the table of elements shows, that one tetrahedron shell corresponds to 4 periods of the 2D table."

Jess Tauber adds:

"The spheres here also aren't labeled, but I explain how they get labeled in the text accompanying the pic.  Each such period (except for s-only, which are obviously simpler) we have a 'switchback' configuration. Like a road going up a mountain back and forth to minimize verticality, or a parachute folded into a pack. There are 8 different ways to do this (4 basic types in 2 chirally opposite mappings). And the original Weise-style non-continuous tetrahedron is just another way to organize half tetrahedra."

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Year:  2011 PT id = 1038

Tresvyatskii's Periodic Table

Powder Metallurgy and Metal Ceramics, Vol. 49, Nos. 9-10, 2011:

The paper published below represents Tresvyatskii's fundamental study. It establishes the interrelation between the ionization potential and place of an element in the periodic table. Oxides with a certain composition may form only when an element is ionized to the needed degree. Hence, the ionization potential of elements is an important parameter that governs the formation of an oxide. In this regard, the dependence of the ionization potential on the place of an element in the periodic table is of paramount importance. The role of the ionization potential in the hightemperature chemistry of oxide compounds, which underlies modern oxide materials science, is especially significant. The paper is published in Tresvyatskii's original version.

René Vernon adds:

A depiction of the short-form table, showing some clever thinking:

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Year:  2011 PT id = 385

Bayeh's Theoretical Periodic Table of Elements

"The modern periodic table is based on quantum numbers and blocks, many problems faced the scientists and researchers when arranging the elements in the traditional and modern periodic tables as placing some elements in the incorrect place as (He) Helium, (La) Lanthanide and many others elements..." read the full pdf article here:

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Year:  2011 PT id = 410

Bayeh's Theoretical 3D Periodic Tables

From Bayeh Claude: "I have designed these periodic tables as developments of Bayeh's Theoretical Periodic Table, but I have introduced new shapes and 3D versions":

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Year:  2011 PT id = 414

Stowe-Janet-Scerri Periodic Table

Eric Scerri made contact, writing: "Following the discussions on Periodic Table debate on the Chemistry Views website here, and as a result of recent turns, I have developed a new periodic table which I believe combines virtues of the Stowe table and also the Janet left-step table. I propose the name Stowe-Janet-Scerri Periodic Table. The explanation is posted on the Chemistry Views debate pages.

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Year:  2011 PT id = 1182

Aldersley 3D Periodic Table

A Three Dimensional Periodic Table by Michael F. Aldersley, U.S. Patent 7,938,646 2B

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Year:  2011 PT id = 417

Piazzalunga's Circular Periodic Table

"My name is Marco Piazzalunga, I'm from Bergamo, Italy and i'm 12 years old. I am very interested about chemistry and about your website dedicated to the periodic tables of elements. I've made one graphic version of the periodic table based on a "round" model and i would like to know your opinion about it. I'm sending you the file attached. I hope you enjoy it":

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Year:  2011 PT id = 418

Pacholek's Multipipe 3D Periodic Table

"I've recently invented a new type of periodic table. My table is 3-dimensional and is similar to the ADOMAH Periodic Table, but it's also very different from the ADOMAH Tetrahedron. Its main advantage is being fully geometric in the plane spanned by n, l and n+l quantum numbers."

Take a look at the Picasa images here and here:

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Year:  2011 PT id = 431

Alper's Quantum Table of The Elements

Ben Alper's Quantum Table of The Elements is a simplified periodic table which shows the elements are ordered by the energy level of their sub shells and by the number of electrons in their outer shell. Such a layout is both representative of the structure of atoms and has utility since it is easy to use.

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Year:  2011 PT id = 432

Makeyev's Periodic Table

By Alexander Makeyev – integrated interdisciplinary researcher, inventor, poet – a long pdf document (1093 pages in Russian, here) that contains a new formulation:

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Year:  2011 PT id = 438

Fractional Janet Left-Step Periodic Chart

On Willie Johnson Jr.'s website – Gyroscopic Force Theory – can be found the Fractional Janet Left-Step Periodic Chart:

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Year:  2011 PT id = 445

Wikipedia Long Form Periodic Table

Wikipedia has now adopted a now adopted a long form periodic table to link between the chemical elements. Scroll to the bottom of this page:

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Year:  2011 PT id = 447

Alashvili Rotating Spherical Periodikal Tabel

A nice rotating, spherical (3-D) periodic table by Tornike Alashvili, from Georgia, which can be viewed here as a .swf image:

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Year:  2011 PT id = 470

Normal vs Correction Shell "Pi Paradox" for 1-270 AMUs

From Bill Harrington, Founder/CTO of Rainforest Reactor Research and Temporal Dynamics Laboratory, comes a Normal vs Correction Shell "Pi Paradox" for 1-270 AMUs:

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Year:  2011 PT id = 477

Elements Known in the Year 2011

Elements known in the year 2011, taken from this Wikipedia page... all the elements to 118 are now known:

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Year:  2011 PT id = 487

Suggested Periodic Table Up To Z ≤ 172, Based on Dirac–Fock Calculations

A suggested periodic table up to Z ≤ 172, based on Dirac-Fock calculations on atoms and ions
Pekka Pyykkö
Phys. Chem. Chem. Phys., 2011,13, 161-168
DOI: 10.1039/C0CP01575J

Extended Average Level (EAL) Dirac–Fock calculations on atoms and ions agree with earlier work in that a rough shell-filling order for the elements.

[This new] Periodic Table develops further that of Fricke, Greiner and Waber [Theor. Chim. Acta 1971, 21, 235] by formally assigning the elements 121–164 to (nlj) slots on the basis of the electron configurations of their ions. Simple estimates are made for likely maximum oxidation states, i, of these elements M in their MXi compounds:

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Year:  2012 PT id = 524

Compact Mendeleev-Moseley-Seaborg Periodic Table (CMMSPT)

A Compact Mendeleev-Moseley-Seaborg Periodic Table (CMMSPT).

This table can be found by two different ways:

These 2 transformations lead to the same table, with 7 rows and 32 columns. Blocks p (green), d (light grey), and f (light orange) are preserved.

The 14 terms of the s block (dark orange/red) are splited in "cascads".

This table can be seen in the A173592 sequence in the On-line Encyclopedia of Integer Sequences (OEIS). Row differences are 8, 8, 18, 18, 32, 32.

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Year:  2012 PT id = 529

Srivaths–Labarca Periodic Table

This is an improved version of the Zigzag Periodic Table (2012). In this new arrangement the main criteria proposed to settle the placement of the elements hydrogen and helium has been taken into account: electronic configurations, the number of electrons needed to fill the outer-shell, chemical behavior, and triads of atomic number.

This is a new categorial criterion recently proposed by Eric Scerri, according to which hydrogen and helium form part of the triads H(1), F(9), Cl(17) and He(2), Ne(10), Ar(18), respectively. Thus, hydrogen preserves its place between alkali metals and halogen while helium is now in between noble gases and alkaline earth elements.

This periodic table allows visualizing easily the relationships of hydrogen and of helium with the different criteria, avoiding drawing lines to see them in contrast to other similar periodic systems.

Akash Srivaths, Chennai, India
Martín Labarca, CONICET & National University of Quilmes, Argentina

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Year:  2012 PT id = 532

Alexander Arrangement of Elements, 3D Illustrated

The design of the 2012 Alexander Arrangement of Elements (AAE) follows the principles of a three-dimensional model developed by Roy Alexander in 1965: a printed representation of element information based on strict adherence to the Periodic Law, with every element data box physically and visually contiguous and continuous within the sequence of atomic numbers in generally accepted element property related columns - "...the periodic table the way it's supposed to be".

This is made possible by wrapping, folding, and joining the printed material and employing the patented p-block downslant of the element data boxes to allow the end element of a period to be adjacent to the first element of the next period.

Several unique features separate it from the previous four versions of the AAE

Designed by Roy Alexander, a science museum exhibit and teaching aid designer, the Adobe Illustrator art for the model was started by Ann Grafelman, and continued by Roy from mid 2011 through November of 2012.

Photos were provided by Theodore Gray, and Element Collection funded the printing and die cutting performed by Strine Printing in York, Pennsylvania. The model kit was first offered at Theo's PeriodicTable.com, then at Roy's AllPeriodicTables.com and the new 3dPeriodicTable.com, which site is dedicated to the 3D Forever Periodic Table only, with add-ons, application suggestions, and descriptions and commentary of all sorts.

Assembly instructions and step photos, as well as a number or completed model color photographs are included with the kit. These were developed with prototype models, and while functional, have been upgraded and accompanied by an assembly video at AlexanderArrangementOfElements.com/3D

Addendum:

Text relating to the abbreviation of the ever increasing number of elements is explained at two places on the 3D AAE illustrated periodic table model kit. One will remain with the model and one is removed at the time of assembly.

That which remains runs under the Actinoids and the d-block elements, where the lab created elements might ordinarily be expected to be found, says:

The lab created elements ordinarily found in this part of a periodic table are not to be found in nature, there can be no photographs of them, so nothing needs to be added to this element photo periodic table - ever - so it will never be obsolete, a Forever Periodic Table.

That which is removed says:

Naturally-occurring elements have been numbered variously, generally between 80 and 96, all for cogent scientific reasons.

For easier teaching and learning, we have included on this periodic table only the 92 elements actually currently existing on Earth and in the remainder of the Universe, and adding Technetium and Promethium, which, although they may have no stable forms, serve to fill what would otherwise be gaps in the sequence.

Not added for practical and educational reasons are 'elements' consisting only of pages and pages of computer data from smashing atoms in particle accelerators. Another reason is that there can be no photographs of them to show, and as a result, your arrangement is complete and never be obsolete - your Forever Periodic Table.

Included with the art of the periodic table on the die cut substrate that makes up the model is some background information about the the history of three dimensional periodic tables.

The first of these is about the discoverer of the concept of arranging the elements in periods suggested by the properties of the elements, de Chancourtois.

The second 3D periodic table information piece (on the rear of the de Chancourtois removable card) are sketches of a number of the 3D periodic tables found on the Chemogenesis website.

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Year:  2012 PT id = 533

Vortic Periodic Table in Marquetry

From Dr David Robson:

"My vortic periodic table created in marquetry may be of interest. I have always thought of vortic energies and with retirement time, I used my Marquetry Hobby to so create. Despite the inevitable Black Hole centre I have included the Higgs Boson there as a tribute to its discovery and potential as a window to elsewhere."

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Year:  2012 PT id = 536

Makeyev's Verticle Form Periodic Table

A new version of the periodic table of elements on the vertical table form. Alexander K. Makeyev, a member of the Moscow Society of Naturalists, section of planetonautics; freelance interdisciplinary researcher and inventor, knowall@list.ru.

1. Makeyev A.K. Normal and pathological anatomy and physiology of the human person and society. Fundamental knowledge about the qualities of the human person, human society and the software company, produces and acts of people, based on the universal algorithm of holographic structure and function at all levels and forms of matter. / / Scientific and Technical Library. July 25, 2012. 364 p, here

2. Makeyev A.K. Particles of electrostatic and magnetic fields in the system of matter photons move faster than a photon moves himself. / / The scientific debate: Proceedings IV International Correspondence scientific conference. Part I. (20 August 2012) - Moscow:. "International Centre for Science and Education", 2012. 142., S. 47-65. ISBN 978-5-905945-37-3 UDC 08. BBK 94. H 34, here:

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Year:  2012 PT id = 538

Wheelshaped Table of Elements

From Facebook, a Wheelshaped table of elements.

Please note the symmetry of this representation.

As a result, it is possible that element 118 is the very last one in the periodic table. We have the sequence:

2 x 14 (blue)
4 x 10 (brown)
6 x 6 (violet)
8 x 2 (green)

and, logically, neither first nor last factor can be 0 or -2 (they differ in two columns above respectively by 2 and 4). On the other hand, the coherence of the structure requires the existence of two additional elements at the beginning!

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Year:  2012 PT id = 542

Bettermann Periodic Table

In the course of my enquiries regarding the peridoc table of the elements your comprehensive and interesting collection of the varying configuration of the elements caught my eye. Responding to a growing interest, I worked through all models but couldn't find any configuration which agrees with mine.

Find my configuration for the elements in the figure below. Please open the attachment in which you find an explanatory statement for the illustrated principle, pdf file here. It bases upon the Moseleysches diagrams and the work of Eugenie Lisitzin from the thirties of the last century.

Heiner Bettermann

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Year:  2012 PT id = 551

Piazzalunga's Pyramidal Periodic Table Formulations

Three Pyramidal Periodic Table Formulations, and a Spiral, from Marco Piazzalunga:

 

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Year:  2012 PT id = 1102

Eric Scerri Lecture, Dedicated to Fernando Dufour

Dr. Eric Scerri from the Chemistry Department at UCLA giving a distinguished invited lecture at the Oscar Peterson auditorium of Concordia University, in Montreal. The topic is the history and iconic nature of the Periodic Table.

Thanks to Eric Scerri – who appears – for the tip! 
See the website EricScerri.com and Eric's Twitter Feed.

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Year:  2012 PT id = 479

Mathematical Expression of Mendeleev's Periodic Law

Valery Tsimmerman, of the ADOMAH Tetrahedron periodic table formulation and the Perfect Periodic Table website, presents a Mathematical Expression of Mendeleev's Periodic Law:

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Year:  2012 PT id = 483

Zigzag Periodic Table

In this periodic table we can see that the elements are arranged in a different way. Hydrogen is placed in between (and above) fluorine and lithium. This is because there is an issue on the placement of hydrogen as it has the properties of both alkali metals and halogens.

How to read the Zigzag periodic table

For periods (1), (2B), (3B) etc. read from right to left.
For periods (2A), (3A), (4A) etc. read from left to right

The arrows will guide you through the periodic table:

By Akash Srivaths, High School Student, Chennai, India

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Year:  2012 PT id = 486

Eggenkamp's Periodic Table

Hans EggenkampI presents a periodic table based upon the table by Mendeleev, in combination with the lanthanides and actinides as suggested by Laing. A simplified Pourbaix (Eh-pH) diagram is shown for each element, colored according to the oxidation stage showing the systematics in the Periodic Table:

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Year:  2012 PT id = 493

JR's Chemistry Set

For the iPhone and iPad, JR's Chemistry Set makes chemistry interesting and fun to learn. Based upon the innovative Rota Period, it is a handy and powerful reference tool for chemistry enthusiasts and practitioners at all ages and all levels.

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Year:  2012 PT id = 500

Magnetic Periodic Table

By Particle Zoo, sellers of Higgs Boson and Anticharm Quark soft toys, comes a magnetic periodic table which you can arrange into any formulation you like!

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Year:  2012 PT id = 502

Schematic Periodic Table of Double-Charged Cations

N. S. Imyanitov / The Periodic Law. Formulations, Equations, Graphic Representations, Russian Journal of Inorganic Chemistry, Vol. 56 (14), 2183 - 2200, 2011 (In English), DOI: 10.1134/S0036023611140038

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Year:  2012 PT id = 503

Extended Periodic Table - Alternative

From Rasko Jovanovic's World of Mathematics, an Extended Periodic Table - Alternative:

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Year:  2012 PT id = 504

Three Different Long-Form, or 32-Column, Periodic Tables

From an article by Eric Scerri in the IUPAC magazine, Chemistry International, in which three different long-form, or 32-column, periodic tables with differences highlighted.

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Year:  2012 PT id = 506

Rihani's 120 Element Periodic Table Formulations

Jeries Rihani writes: "Assuming the periodic table may reach an end at atomic number 120, I wish to draw your attention to the following three variations for the periodic table that I have on my web site Symmetry Of The Periodic Table which I think might be of interest, here, here & here":

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Year:  2012 PT id = 765

Ato Circular Periodic Table by Ramanpreet Singh Jandu

Ramanpreet Singh Jandu writes:

"The present invention relates to a device for the understanding of the periodic table and the structure of the atom together in a better way.

The device consists of seven concentric circular disks rotatable about their centre, wherein the size of the disks increases from the centre to the end like that in the structure of the atom.

Each disk is marked so as to form the sub-blocks and each disk in itself represents the periods of the periodic table.

The disks are divided into sub-blocks and labeled with elements at back side as well.

Thus the Ato Circular Periodic Table, as the name suggests, is the combination of atomic structure of the atom and that of the periodic classification of the elements."

Read more in the pdf file which describes the new formulation in detail.

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Year:  2013 PT id = 560

Twin Spiral Pi Trinomial - Based Periodic Table

A Twin Spiral Pi Trinomial - Based Periodic Table by Bill Harrington, Founder/CTO of Rainforest Reactor Research and Temporal Dynamics Laboratory. For full size, click the image:

 

 

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Year:  2013 PT id = 561

Macro-Valence Cells vs Jovian Image and Red Spot Location Periodic Table

A Macro-Valence Cells vs Jovian Image and Red Spot Location Periodic Table by Bill Harrington, Founder/CTO of Rainforest Reactor Research and Temporal Dynamics Laboratory. For full size, click the image:

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Year:  2013 PT id = 562

Fattah's Periodic Table

A new vertical periodic table by Dr. Khalid A. FATTAH, Faculty of Eng., Karary University, Khartoum, Sudan. For full size, click the image:

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Year:  2013 PT id = 564

7 Elemental Chemical Synthesis

The Mystics Guide to Elemental Chemistry, by bzylman at deviantart:

[A] poster is designed to geek out the chemist and the mystic alike. It is a variation on the periodic table of chemical elements that have been rearranged into a circular structure based upon their proton count and chemical family, augmented with the concept of the 7 mystic elements of earth, air, fire, water, metal, wood and void. It was very interesting to work upon once I hit the correct organization of elements that they lined up almost perfectly.

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Year:  2013 PT id = 566

Electronegativity Chart (Leach)

From Mark R Leach's paper, Concerning electronegativity as a basic elemental property and why the periodic table is usually represented in its medium form, Journal & PDF.

Due to the importance of Pauling's electronegativity scale, as published in The Nature of The Chemical Bond (1960), where electronegativity ranges from Cs 0.7 to F 4.0, all the other electronegativity scales are routinely normalised with respect to Pauling's range.

When the Pauling, Revised Pauling, Mulliken, Sanderson and Allred-Rochow electronegativity scales are plotted together against atomic number, Z, the similarity of the data can be observed. The solid line shows the averaged data:

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Year:  2013 PT id = 567

MCAS Electron Orbital Filling

From Joel M Williams:

"While the periodic table arrangement is usefully interpreted in columns of similar behavior, it is erroneous to imply that the underlying orbitals are all the same for all the elements in the columns of a block. Sub-orbital information has been excluded! From the standpoint of chemistry, the rule of eight would have provided better imagery on which to build an orbital system than was Bohr's orb turned-sphere. A sphere is useless from a chemical standpoint. Hybridization should not have to occur to explain the simplest of molecules. Simplicity would have the electrons occupying orbital spaces that are similar in shape. Only three orbital types are actually needed to describe the electron packing of the elements. Octahedral, square-planar, and pyramidal coordination complexes of the transition elements follow logically without the need to hybridize. This brief paper describes a rational packing of electrons around a nucleus that ends up mimicking the familiar periodic table when compressed to similar behavior."

 

Modeling the MCAS Way describes this concept of "building blocks" and can be found here.

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Year:  2013 PT id = 580

Higgs Boson and Fundamental Particle/Force Periodic Tables

The Higgs boson sits at the heart of the Standard Model of particle physics, and so is at the centre of periodic table type representations of quarks, leptons and forces.

Three representations by the UCR Today, a video interview with Particle Fever editor Walter Murch: "The Higgs boson is kind of a MacGuffin" and from im9.eu:

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Year:  2013 PT id = 584

Fattah's Extended Periodic Table

A new vertical periodic table (Extended) by Dr. Khalid A. FATTAH, Faculty of Eng., Karary University, Khartoum, Sudan:

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Year:  2013 PT id = 588

Proton Configuration Periodic Table

A Periodic Table of Proton Configurations by Radoslav Rasko Jovanovic:

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Year:  2013 PT id = 589

4D Stowe-Janet-Scerri Periodic Table

By Jgmoxness

"I've replaced the standard periodic table in the 7th "Chemistry Pane" of my E8 visualizer with a 2D/3D/4D Stowe-Janet-Scerri version of the Periodic Table."

"Interestingly, it has 120 elements, which is the number of vertices in the 600 Cell or the positive half of the 240 E8 roots. It is integrated into VisibLie_E8 so clicking on an element adds that particular atomic number's E8 group vertex number to the 3rd E8 visualizer pane. The code is a revision and extension of Enrique Zeleny's Wolfram Demonstration":

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Year:  2013 PT id = 590

Shapes Periodic Table

By ScienceIsGolden.com comes the Periodic Table of Shapes. The site is worth clicking around, as there is a lot of good PT stuff to find:

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Year:  2013 PT id = 592

3D Left Step Periodic Table

By Masahiko Suenaga, Kyushu University, Japan a 3D Left Step Periodic Table.

"Inspired by the work of Dr. Tsimmerman and Dr. Samanez, I have created a new 3D Left Step Periodic Table, which resembles to Mt. Fuji, recently registered as a World Heritage site. For more information, please visit my website":

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Year:  2013 PT id = 596

From Periodic Properties to a Periodic Table Arrangement

A paper in J.Chem. Ed.: From Periodic Properties to a Periodic Table Arrangement

Emili Besalú, Departament de Química i Institut de Química Computacíonal i Catàlisis, Universitat de Girona, C/Maria Aurèlia Capmany, 69, 17071 Girona, Catalonia, Spain.

J. Chem. Educ., 2013, 90 (8), pp 1009-1013 DOI: 10.1021/ed3004534 Publication Date (Web)

"A periodic table is constructed from the consideration of periodic properties and the application of the principal components analysis technique. This procedure is useful for objects classification and data reduction and has been used in the field of chemistry for many applications, such as lanthanides, molecules, or conformers classification. From the information given, the whole procedure can be reproduced by any interested reader having a basic background in statistics and with the help of the supplementary material provided. Intermediate calculations are instructive because they quantify several concepts the students know only at a qualitative level. The final scores representation reveals an unexpected periodic table presenting some interesting features and points for discussion."

<From Periodic Properties to a Periodic Table Arrangement>

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Year:  2013 PT id = 597

Periodic Pyramid

A Periodic Pyramid by Jennifer N. Hennigan and W. Tandy Grubbs * Department of Chemistry, Stetson University, DeLand, Florida 32723, United States

J. Chem. Educ., 2013, 90 (8), pp 1003-1008 DOI: 10.1021/ed3007567 Publication Date (Web): June 21, 2013

The chemical elements present in the modern periodic table are arranged in terms of atomic numbers and chemical periodicity. Periodicity arises from quantum mechanical limitations on how many electrons can occupy various shells and subshells of an atom. The shell model of the atom predicts that a maximum of 2, 8, 18, and 32 electrons can occupy the shells identified by the principle quantum numbers n = 1, 2, 3, and 4, respectively. The numbers 2, 8, 18, and 32 are shown in this work to be related to the triangular numbers from mathematical number theory. The relationship to the triangular numbers, in turn, suggests an alternate method for arranging elements in terms of periodicity. The resulting three-dimensional "periodic pyramid" is highly symmetric in shape. Just as is true in the modern periodic table, each layer of the periodic pyramid can be separated into shell and subshell contributions. Examining the pyramid's structure is arguably a pedagogically useful activity for college-level introductory or physical chemistry students, as it provides an opportunity to further ponder the shell model of the atom and the origins of periodicity. The connections to number theory are used to show that the outermost subshell of a given shell contains (2n - 1) orbitals.

<Periodic Pyramid>

Thanks to Eric Scerri for the tip!
See the website EricScerri.com and Eric's Twitter Feed.

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Year:  2013 PT id = 598

Bernard Periodic Spiral

The Bernard Periodic Spiral of the Elements (BPSE), depicts a novel rendition of the Periodic Table that replaces the flat rectangular format with a continuous unidirectional spiral that maintains all the properties of Group and Period formation.

Comparisons may be made with similar models spanning the last three decades of the 20th century (Alexander, 1971; Mazurs, 1974; & Kaufman, 1999).

In the chart form, this new rendition is referred to as the Elliptical Periodic Chart of the Elements. In the three-dimensional form, the model resembles a Christmas tree in shape with the 7 Periods represented as circular platforms situated at various levels with the elements placed appropriately at the outer edges of each of these platforms as a Period builds up. The elements may be represented as spherical objects or flat discs with radii proportionate to atomic radii (or reasonable approximations). Color schemes accentuate the four different Blocks of elements: the s-Block (green), the p-Block (blue, with the exception that the last Group is red signifying the end of a Period), d-Block (orange), and the f-Block (yellow). The grey section, called the Group-Period Interchange, is where the end of a particular Period connects to the beginning of the next Period, and, at the same time, transitions from Group 18 to Group 1.

Watch the video here:

<Bernard Periodic Spiral>

Thanks to Eric Scerri for the tip!
See the website EricScerri.com and Eric's Twitter Feed.

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Year:  2013 PT id = 611

Underground Map of the Elements

By Dr Mark Lorch of the University of Hull, an Underground Map of the Elements.

From here: "My son loves trains. So I came up with a train related twist to an inspection of the periodic table. We sat and cut up a copy of the table and then rearranged each element as a 'station' on an underground rail system. Each line represents a characteristic shared by the elements on that line":

Underground Map of the Elements

Thanks to Eric Scerri for the tip!
See the website EricScerri.com and Eric's Twitter Feed.

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Year:  2013 PT id = 613

Matrix Series Periodic Table

By Richard Kingstone, a Matrix Series Periodic Table. Read more here.

The Janet Periodic Table (aka Left Step Table) may be re-arranged as a series of square matrices. Each element is represented as a cell and is identified by the atomic number (Z), shown as the upper number of each cell.

The quantum numbers (n, l, mL, mS) determine the location of an element within the table. The quantum pair (n, l ) are the lower numbers in each cell. Four matrices are required, each matrix is identified by a 'matrix number' (a) as shown below;:

Matrix Periodic Table

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Year:  2013 PT id = 614

Music Notes of Periodic Table

By Claude Bayeh, a Musical Notes formulation:

Music Notes of Periodic Table

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Year:  2013 PT id = 619

Averaged Ionisation Potential Periodic Table

By Leland Allen, a representation of the periodic table with the third dimension of energy derived from the averaged ionisation potentials of the s and p electrons. (Allen suggested that this was a direct measure of electronegativity). From J. Am. Chem. Soc. 1989, 111, 9004:

Averaged Ionisation Potential

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Year:  2013 PT id = 620

Model Wooden Periodic Table

From here, and translated from Spanish:

Among the events commemorating the 75th anniversary of the creation of the School of Treball, the author of this site, B. Navarro, along with J. Semis and J. Gràcia have built a model wooden periodic table.

The table has been divided into 5 areas: representative elements, noble gases, transition elements, rare earths and finally the groups I and II of alkali and alkaline earth together. Each of these areas of the table is made with a different type of wood. The block transition elements is made with oak, ash noble gases, representative elements in cherry, sapele the rare earth and alkali/alcalinoterros beechwood.

The central idea of the model is that each element is represented by a cube of 3 cm edge so that you can see on all sides, from left to right or right to left without losing the order of increasing atomic number or the relative position of the elements:

Wooden Periodic TableWooden Periodic Table

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Year:  2013 PT id = 622

Muradjan's Mathematical Structure of The Periodic Table

From the website periodictablemathstructure:

Abstract:

The Periodic Table with a new double numerical structure, presented here is attempt to find table form which will in some new way represent the periodicity and symmetry of the Elements, with the Periodic System as base. Also this tetrahedral laminar table structure maybe will became a base for developing a new shell structure of atomic nucleus. This new rearrangement of the chemical element is based on mathematical formula which result is simple, length of the periods:

Math Periodic Table

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Year:  2013 PT id = 629

Atomic Periodic Town

Three related formulations by Baha Tangour (Tangour Bahoueddine), the Atomic Town and two Boomerang periodic tables.

Baha says: "The propositions are different representation of a 3D dimensions that depend on three properties (spectral term multiplicity, lone-pairs and period number)":

Kabbalistic

 

Kabbalistic

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Year:  2013 PT id = 1164

Periodic Pyramid

The Periodic Pyramid by Jennifer N. Hennigan and W. Tandy Grubbs, J. Chem. Educ. 2013, 90, 8, 1003-1008, https://doi.org/10.1021/ed3007567.

"The chemical elements present in the modern periodic table are arranged in terms of atomic numbers and chemical periodicity. Periodicity arises from quantum mechanical limitations on how many electrons can occupy various shells and subshells of an atom. The shell model of the atom predicts that a maximum of 2, 8, 18, and 32 electrons can occupy the shells identified by the principle quantum numbers n = 1, 2, 3, and 4, respectively.

The numbers 2, 8, 18, and 32 are shown in this work to be related to the triangular numbers from mathematical number theory. The relationship to the triangular numbers, in turn, suggests an alternate method for arranging elements in terms of periodicity. The resulting three-dimensional 'periodic pyramid' is highly symmetric in shape. Just as is true in the modern periodic table, each layer of the periodic pyramid can be separated into shell and subshell contributions. Examining the pyramid's structure is arguably a pedagogically useful activity for college-level introductory or physical chemistry students, as it provides an opportunity to further ponder the shell model of the atom and the origins of periodicity. The connections to number theory are used to show that the outermost subshell of a given shell contains (2n – 1) orbitals."


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Year:  2013 PT id = 688

Ye Olde Periodic Table

From the Serious Severity blog, a spoof of this formulation:

ye olde periodic table

Thanks to Marcus Lynch for the tip!

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Year:  2013 PT id = 970

Labarca & Zambon's Formulation

Labarca & Zambon's new representation of the periodic system.

A reconceptualization of the element concept as a basis for a new representation of the periodic system, Martín Labarca and Alfio Zambon, Educ. Quím., 24(1), 63-70, 2013.

"The aim of this paper is to propose a new conceptualization of the term 'element' as the basis for a new representation of the periodic system. For this purpose we begin by recalling the dual sense of the concept of element. Next, we develop the 'limits isotopes' argument which is the basis of the new periodic chart. This task leads us both to reconceptualize the notion of element and to characterize the term 'basic substance'. In turn, the argument is used to face the epistemological problem with hydrogen and helium in the periodic table. Finally, the Döbereiner's triads are used to calculate atomic masses in three periodic charts: the medium-long-form, the modified 'left-step' proposed by Scerri, and the proposed in this work. Evaluation results allows us to stand out the fruitful predictive power of our periodic system.

"The 46 blocks of elements are ordered vertically by the increasing number of neutrons of the lighter isotope (primary criterion) and, horizontally, by the increasing atomic number (secondary criterion). The subscript represents the value of L - Z and the superscript the value of Z."

Thanks to Eric Scerri for the tip! See the website EricScerri.com and Eric's Twitter Feed.

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Year:  2014 PT id = 636

Lado's Periodic Table Series Analysis

By Solomon F Lado, a mathematical analysis.

Abstract (full paper):

"There is a periodic table, at least in terms of atomic number and electronic configuration, for every positive integer, c >= 2, with a capacity of 20c2 – 21c + 1 elements, where c is the construction index, and c equals one plus the maximum number of electrons per orbital of an atom. The c-construction index and the c-construction-index formulae are unique to this report. The maximum number of potential orbitals per sub-shell of an atom = 3n-1 where n is the index of the s, p, d, and f sub-shells":

Lado

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Year:  2014 PT id = 638

Jodogne's Janet New Color Periodic Table

By J.C. Jodogne, "a Janet type slightly modified to enhance shells, periods and to make determination of ground state configuration (orbitals) very easily to build". Click here to get the full size pdf.

Janet New Color PT

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Year:  2014 PT id = 639

Jodogne's New Color Table

By J.C. Jodogne, "a medium type with the above features but with Z continuity and a general aspect very similar to the usual presentation". Click here to get the full size pdf.

New Color PT

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Year:  2014 PT id = 642

ADOMAH Periodic Table Glass Cube

Valery Tsimmerman, of the ADOMAH Periodic Table and the ADOMAH Tetrahedron, has now used these ideas to produce a beautiful glass cube:

 

This amazing object is available for sale from Grand Illusions:

 

A Note by Philip Stewart stewart.phi@gmail.com

The cube represents 120 chemical elements etched into a cube of Optical Crystal glass. The s, p, d, and f blocks of the Janet periodic table form four rectangles, which are slices of a regular tetrahedron, parallel with two of its edges and with two faces of the circumscribed cube. All four quantum numbers are made visible in this arrangement. You can see a 2-D version on the Perfect Periodic Table website, click on the "skyscraper" version on the right to see the tetrahedron, and go to Regular Tetrahedron at foot of page for details.

The regular tetrahedron is the only form in which slices are rectangles of different shape and identical perimeter. When each orbital is represented by a square of unit edge, the rectangles representing the blocks all have the same perimeter, which is twice the length of the edges of the tetrahedron (which are of course √2 times the edges of the cube): 18 units = 2(values of n + values of ml).

Block
values of
n
values of
ml
s
8
1
p
6
3
d
4
5
f
2
7

Valery Tsimmerman, orahct@gmail.com, creator of the design, has written to me as follows:

"I just had some thoughts about the Perimeter Rule that is at the basis of the tetrahedral arrangement. Dimensions of the blocks are dictated by number of values of ml and number of values of n. We know that n governs quantization of energy. Recently I learned that quantization of the possible orientations of L with respect to an external magnetic field is often referred to as space quantization. (Serway, Jewett: Physics for Scientists and Engineers. 6th edition. p.1369).

"That is, ml stands for space quantization. Therefore, the Perimeter Rule reflects a direct relationship between energy and space. I think that this could have some significance. The beautiful thing about the Universe is that each type of symmetry is related to some conservation law. Symmetry in time is related to energy. Therefore, n is related to time also, so, in the Perimeter Rule we have relationship between time and space on quantum numerical level. The interesting thing is that ml can be positive and negative, while n can only be positive. Similarly, things can move in space in positive and negative directions, but time has only one direction. There is no negative time, just as there are no negative values of quantum number n."

Adomah is a variant of Adamah, Hebrew for 'dust of the earth', from which Adam was made (Genesis 2:7).

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Year:  2014 PT id = 643

Gutierrez Samanez's Binodic Form of the Periodic Table (Video)

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Year:  2014 PT id = 650

Cross Periodic Table

By Claude Ziad Bayeh, a Cross Periodic Table:

Cross Periodic Table

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Year:  2014 PT id = 652

Zambon's Periodic Table Based on Triads

Alfio Zambon – Universidad Nacional de la Patagonia

1. Introduction

In the last decades, the notion of triad has been recovered by Eric Scerri, who suggested it as a possible categorical criterion to represent chemical periodicity. In particular, he reformulates the notion of triad in terms of atomic number instead of atomic weights and, in this way, the value of the intermediate term of the triad is the exact average of the values of the two extremes. The author notes that the attempt of finding new triads is very important since this relation is based exclusively on the atomic number, that is, the only feature of the elements considered as basic substances. In this work, I will follow Scerri's general proposal.

Read the full paper here (pdf):

Words Periodic Table

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Year:  2014 PT id = 653

Eadie's Periodic Electron Configuration

By Gerald Eadie, a Periodic Electronic Configuration:

Periodic Electron Configuration

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Year:  2014 PT id = 661

Chandra's Polar Plot Periodic Table

MONOGRAPH ON ATOMS, BY Dr. N. Naveen Chandra, 543 Bellamy Road North Scarborough, On, M1H1G5, 416 439 6630, chandraalex@hotmail.com >© N.Naveen Chandra, 2014.

Abstract

A new way of graphical representation of atoms is developed and presented here. Atoms are recognized as functions of two variables A(r,Θ), where r =2,10,18,36,54,86,118 (given arbitrarily r=1,2,3,4,5,6,7) represents period and Θ representing group, is actually the angle between the groups. A mathematical solution is obtained for Θ having three distinct values of (π /9) radians, (π/18) radians and (π/27) radians which define three super groups satisfying the equation 15(π/27) +10(π/18) +8 (π /9) =2π. 15 groups of two Atoms with a transition zone of (π/27) radians is nominally called Grey Super Group (GSG). 10 groups of which 9 have four Atoms and 1 has two Atoms, also including a transition zone of (π/18) radians, is nominally called Blue Super Group (BSG). 8 groups of which 7 have 6 Atoms and one has 7 Atoms, including a transition zone of (π/9) radians is called Yellow Super Group (YSG). The group with 7 atoms is the so called reference group of Atoms 2, 10, 18,36,54,86 and 118. The GSG has 30 Atoms, the BSG has 38 Atoms and the YSG has 49 Atoms. The Atom 1 is at the centre of the Hub and does not belong to any group or period and has coordinates of (0, 0). Atom 1 having no neutrons is unique.

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Year:  2014 PT id = 662

Metallic Character Table

"I would like to submit you an hexagonal periodic table. It's structured in different rings. The elements are ordered on their metallic characters so in the inner rings there are noble gases and nonmetals while in the outer rings there are alkali and alkaline earth metals. I based the order on the typical metallic characteristics: low ionization energy, electron affinity, etc... "

Marco Piazzalunga <marco.piazzalunga@live.com>

Metallic Characters

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Year:  2014 PT id = 664

Janet Rajeuni

By Philip Stewart:

Janet Rejuvenated, with acknowledgement to Mazurs and to Valery Tsimmerman for the idea of using one square per orbital and of shifting the blocks so that each row represents one value of n, the principal quantum number.

The main objection people make to Janet is that He is placed at the head of the alkaline earth metals although it behaves as a noble gas. The essential answer is that electronic structure explains behaviour and not vice versa; like Ne (and unlike Ar, Kr, Xe and Rn), He has a complete shell. Similarly H, like C, is half way between a full and an empty shell, unlike the alkali metals and the halogens. I suggest a new argument: nobody finds it strange that the p block has a row of non-metals at its head (and that half its members are non-metals), so why not the s block?

Janet Rajeuni

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Year:  2014 PT id = 670

UVS Periodic Tables

From the Universal Vortical Singularity (UVS) website, two related formunations from the nucleosynthesis in the universe section, one showing a "manifold dual-core 3-sphere hypersphere topology", and the other showing a "dual-core Möbius strip topology":

UVS manifold dual-core 3-sphere hypersphere topology

UVS dual-core Möbius strip topology

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Year:  2014 PT id = 671

Clock Periodic Table

Prof. Martyn Poliakoff of the University of Nottingham, and star of the Periodic Videos YouTube Channel, explains how he was given a periodic table clock by a Japanese School teacher... which he likes very much:

Clock PT

 

Thanks to Eric Scerri for the tip!
See the website EricScerri.com and Eric's Twitter Feed
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Year:  2014 PT id = 680

Belikov's Modular Periodic Table of Chemical Elements

"I call this version of the Modular Periodic Table of Chemical Elements. I got the idea for it some time between 2005 and 2007, during the chemistry course at my university, in attempt to rationalize the clumsy common version I was being taught. I showed it to my chemistry teacher, but he didn't seem to be impressed much, so it went into the drawer. Recently I decided to resurrect it and publish somewhere. So I had a look on the web and found your excellent database, with hundreds of versions. After the first shock, I realized that only few are actually similar to my version. These are well known Janet's table and ADOMAH table. So, it appeared to me that the idea to group elements strictly according to filling of their atomic shells is not new. However, the way I have done it is slightly different from the mentioned tables. For example, s,p,d and f blocks of elements are completely autonomous and can be placed wherever desired (hence the name 'Modular'). This reflects the notion that there is little in common in chemical behavior between the elements in different blocks. Also, outer subshell type, energy level and electron count are clearly labeled, so that these parameters can be quickly determined for each element.

"Overall, I think that this version of periodic table allows easier understanding and transition from IUPAC table and could be implemented in school and university textbooks."

Aleksey Belikov

Belikov

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Year:  2014 PT id = 681

Jodogne's Janet New Colour Periodic Table

"This Periodic Table(click here for larger version) incorporates the Real Aufbau of Professor Pyykkö based on relativistic Quantum Mechanics, with Z continuity horizontally and vertically, by means of taking into account the ground level - energy increase upward - of the last incoming electron (the lower side of the element case is the level guide mark). A large yellow line indicates period. A gradual color for H induces a manifold chemical behavior."

J.C.Jodogne

Janet New Colour

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Year:  2014 PT id = 697

Aco Muradjan's New Notation Scheme

Aco writes:

On 08.11.2014 I added an article to the General Science Journal:

"Necessity of urgent revising and changing the present IUPAC notation scheme in the Periodic Table"

The current and present modern notation scheme for the groups in the Periodic Table exist from 1985, proposed from the IUPAC Commission on the Nomenclature of Inorganic Chemistry, as recommendation. This proposal was also verified in 2005.

Because the IUPAC Commission encourages further discussions, improvements and proposals on this subject I made this new article which article investigates the possibilities for the new notation scheme in the Periodic Table. Links:

http://gsjournal.net/Science-Journals/Research%20Papers-Quantum%20Theory%20/%20Particle%20Physics/Download/5755

http://gsjournal.net/Science-Journals/Essays/View/5755

This article has picture of the Periodic Table with new notation scheme:

Aco Muradjan's New Notation Scheme

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Year:  2014 PT id = 705

Arrangement of Elements 7th Order & Element Sequences

An exploration of some mathematics underlying the periodic table, read the PDF here, by Olivier Joseph.

Oliver says:

"May I propose you the following pattern, as the result of a personal study concerning the arrangement of the Elements, including sequences. Based on some hypothesis and as depicted in the enclosed illustrations, the elements are positioned according to a spiral function of atomic number and atomic mass, representation in 2D in a spiral form pattern, or in 3D conical helix model.

"The elements are numbered and placed consecutively along this spiral according to a specific angle, appropriately established between each element, forming a seven arm spiral pattern. With such an angle, specifically defined, a link is established between the various elements of a same group (corresponding to chemical elements with similar properties) and different layers. These latter becoming distributed among each arm of the spiral in a notable arranged way."

Arrangement of Elements 7th Order & Element Sequences

Arrangement of Elements 7th Order & Element Sequences

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Year:  2014 PT id = 723

Schaeffer's IUPAC Periodic Table Quantum Mechanics Consistent

IUPAC Periodic Table Quantum Mechanics Consistent, Bernard Schaeffer, Journal of Modern Physics, Vol. 5, No. 3, February 24, 2014
DOI: 10.4236/jmp.2014.53020

Abstract: Most periodic tables of the chemical elements are between 96% and 100% in accord with quantum mechanics. Three elements only do not fit correctly into the official tables, in disagreement with the spherical harmonics and the Pauli exclusion principle. Helium, belonging to the s-block, should be placed beside hydrogen in the s-block instead of the p-block. Lutetium and lawrencium belonging to the d-block of the transition metals should not be in the f-block of the lanthanides or the actinoids. With these slight modifications, the IUPAC table becomes quantum mechanics consistent.

IUPAC Periodic Table Quantum Mechanics Consistent

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Year:  2015 PT id = 674

UVS Periodic Table Model of a Klein Bottle Topology

This configuration can topologically suggest the g-block cycle in the 8th period for extended periodic table.

In the Klein bottle topology as illustrated, it is plausible that after the s-block cycle in the 8th periodical cycle, the topological path continues to spiral around the outer f-block cycle to harmonically form 14 elements.

And then subjected to the spiral Möbius strip topological twist, it could resonate to form 4 more elements in the anti-cyclonic path around 17th, 18th, 1st, and 2nd angular phases of the anti-cyclonic core; this would render the 18 elemental positions for the hypothetical g-block cycle in the entire half-integral anti-cyclonic cycle of the Klein bottle topology.

Hypothetically, the topological path then moves into the cyclonic cycle, and harmonically forms its d-block and p-block cycles with 16 elemental positions to complete the 8th periodical cycle with a total of 36 elements.

UVS Periodic Table Model of a Klein Bottle Topology

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Year:  2015 PT id = 684

Quantum Fold Periodic Table

A Multi-Form Periodic Table, by keytochemistry.com, with a visual key to electronic configurations:

Quantum Fold Periodic Table

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Year:  2015 PT id = 700

ADOMAH Periodic Table and Normal Distribution

Valery Tsimmerman writes:

The ADOMAH, from here, resembles the normal distribution or "Bell Curve". It also mimics the distribution of electrons in orbitals:

ADOMAH Periodic Table and Normal Distribution

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Year:  2015 PT id = 701

Pams Quantum Periodic Table

By Dr. N. D. Raju, the Pams Quantum Periodic Table. Read the full paper discussing the logic of the new formulation.

ADOMAH Periodic Table and Normal Distribution

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Year:  2015 PT id = 704

Heart Periodic Table

A Heart Periodic Table by Claude Bayeh:

Heart Periodic Table

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Year:  2016 PT id = 1049

Mystery of Matter: Three Videos

From Alpha-Omega, three videos about the discovery of the Periodic Table.

The Mystery of Matter: Search for the Elements is an exciting series about one of the great adventures in the history of science: the long and continuing quest to understand what the world is made of. Three episodes tell the story of seven of history's most important scientists as they seek to identify, understand and organize the basic building blocks of matter.

The Mystery of Matter: Search for the Elements shows us not only what these scientific explorers discovered but also how, using actors to reveal the creative process through the scientists' own words and conveying their landmark discoveries through re-enactments shot with replicas of their original lab equipment.

Knitting these strands together is host Michael Emerson, a two-time Emmy Award-winning actor.

Meet Joseph Priestley and Antoine Lavoisier, whose discovery of oxygen led to the modern science of chemistry, and Humphry Davy, who made electricity a powerful new tool in the search for elements.

Watch Dmitri Mendeleev invent the Periodic Table, and see Marie Curie's groundbreaking research on radioactivity crack open a window into the atom.

The Mystery of Matter: Search for the Elements brings the history of science to life for today's television audience.:

 

 

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Year:  2016 PT id = 1123

Russian Orthodox Elementary System of Unity of the Periodicity of the Electroatoms of the Universe

By Bence Szalai: Russian Orthodox Elementary System of Unity of the Periodicity of the Electroatoms of the Universe

See the 2D version here and the 3d vesion here (in Ukrainian)

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Year:  2016 PT id = 1221

Genoma de la Materia

By Julio Antonio Gutiérrez Samanez, Genome of Matter:

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Year:  2016 PT id = 717

Valentine Periodic Table

A Valentine Periodic Table by Claude Bayeh:

Valentine Periodic Table by Claude Bayeh

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Year:  2016 PT id = 724

NAWA's byobu-Janet Periodic Table

NAWA, Nagayasu: A Japanese schoolteacher and periodic table designer presents a Janet form periodic table in the traditional Japanese "byobu" style:

NAWA's byobu-Janet Periodic Table
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Year:  2016 PT id = 725

Advanced Spiral Periodic Classification of the Elements

By Imran Ali, Mohd. Suhail and Al Arsh Basheer an Advanced spiral periodic classification of the elements. Read the paper here.

Advanced Spiral Periodic Table

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Year:  2016 PT id = 726

Triadic Networks

From orijikan.com: a great summary paper by Dr. Eric Scerri on the role of triads in evolution of the periodic table and a paper by Dr. Alfio Zambon inspired this work. Here is my contribution: the Triadic Networks (TN), which is a general mathematical design, and the Triadic Elemental Networks (TEN), that apply that design to chemical elements. For a full discussion, read the pdf here.

triad networks

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Year:  2016 PT id = 727

Clock Face Periodic Table

In 2014 Prof. Martyn Poliakoff – of YouTube fame – showed us a working Periodic Table clock, here.

The designer of the clock, Nagayasu (a Japannese school teacher), has now provided a fuller periodic table based on the same design:

clock

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Year:  2016 PT id = 729

Sensu or Fan Periodic Table

By NAWA, Nagayasu — A Japanese schoolteacher and periodic table designer — a "Sensu" or fan periodic table:

Sensu or fan

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Year:  2016 PT id = 730

KAS Periodic Table

The KAS periodic table reproduces and depicts the nuclear properties of chemical elements. This periodic table depicts not only the trends of nuclear properties, but also reproduces their numerical values that remain very close to the experimental values (difference less than 4%).

The Segre Chart is based on the number of protons, Z, and the number of neutrons, N. It is like a library of nuclei and shows the recorded data only. The Segre Chart can not work when the number of neutrons is not given. But KAS Periodic Table works when the number of neutrons is not given.It does not require the number of neutrons to produce the results.This is a simple chart based on the number of protons of chemical element. We identify the following properties of elements:-

Read more here, here and here.

KAS Periodic Table

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Year:  2016 PT id = 731

Harrington Periodic Tables

So we start this effort tabula rasa (without preconceived ideas).

1) All atoms have a default "common denominator" structure at 270 mass units, irrespective of the element under discussion. Therefore, no elements seen as wisps and glints past this point are of consequence. Ergo, the bizarre stability of Dubnium 270.

2) This common structure is divided up by the exact same divisors as are the electron orbitals - i.e. the prime numbers of 2, 3, 5, and 7.

3) Pi as a divisor produces its own, unique and dominating organizational patterns.

4) Each of these sets of plotted nuclide "boxes" use identical formats, but are arranged in vertical columns based on the set of 270 AMUs being divided by these prime numbers. So the 5D Table is 270/5 or 54 AMUs per vertical column/"tower".

5) Each system reinforces unique elemental parameters. The system based on 3/Pi, and its second "harmonic" at 6/2Pi reflects physical properties. The 2Pi configuration almost exactly emulates the "conventional" / Mendeleevian element-based table, except the periods are based upon mass not element count, and these periods do not organize in rows of 18 elements, but rather rows of 44 mass units. The organization/configuration of this default structure is: Pi(Pi^2 + Pi + 1) = 44 This is the primary physical default structure of the periodic table and spectrum of elements, as projected in 3D space, and as perceptible to humans.

6) 5D determines everything with magnetic properties. This disproves every single theory that attributes electron shell behavior as determining magnetic parameters. Clearly here we see that the nucleus is "calling the shots", with electron orbitals conforming as driven. The various red and blue shaded boxes are found at extremes of top and bottom.

7) The system of 7D determines most of all physical parameters of surface and molecular behavior. Here we see surface tension, density, softness and hardness, malleability, boiling and melting points and a few other behaviors. This system of correlation is fully unknown to conventional theory. Notice how superlative parameters bunch at the top and bottom of this configuration.

8) When this system of 270 mass units is divided by 12, for 22 mass units per period, the periodic cycle rate precisely correlates with known Type 1 and 2 elemental superconductors. The physical correlations between periodic repetition at 22 mass units, the 270 count system, and superconductors is also completely novel and not compatible to conventional BCS theory. The correlation between this 22 count system and the three largest cross section nuclides known to man (113Cd, 157Gd and 135Xe) is also completely heretical, however mathematically symmetrical and perfect it may actually be organized.

9) The center portion of this common 270 count structure is named the "Cordillera", for the habit of multiple parallel mountain ridges sharing a common alignment. This area is profoundly affected by Pi-based organizations. The very center at 135Xe indicates that the overall table should terminate at element 108 Hassium at 270 mass units. This has a Proton/Neutron ratio of 3:2. This actual nuclide has very poor stability, unlike Dubnium 105 with 270 mass counts. This nuclide has a ratio of precisely 1:Pi/2, indicating the entire table describes a spectrum of mass organizational states spanning the integer ratio of 1:1 (Deuterium) to 3:2, then on through to 1:Pi/2. Current accepted atomic theories concerning "Islands of Stability" are ridiculous.

WAH

Click on the image to see the full size version

KAS Periodic Table

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Year:  2016 PT id = 733

Lindsay's Periodic Table

From Geoffrey Lindsay:

"I put together a table of elements that may be useful for teaching 101 chem from the point of view of valence electrons and the energy sublevels of the valence orbitals".

Click image to see a larger version.

Lindsay's Periodic Table
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Year:  2016 PT id = 740

Complete Periodic Table Chemistry Clock: H to Og

From MrEorganization: "I've created a new periodic table clock for my son, a chemistry undergrad at Whitman College, a holiday present and a celebration of the official new names."

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Year:  2016 PT id = 742

Instructables 3D Periodic Table

From Makendo on the Instructables website:

The first periodic table was developed in 1862 by a French geologist called Alexandre-Émile Béguyer de Chancourtois. He plotted the elements on a cylinder with a circumference of 16 units, and noted the resulting helix placed elements with similar properties in line with each other. But his idea - which he called the "Telluric Spiral" (see here), because the element tellurium was near the middle - never caught on, perhaps because it was published in a geology journal unread by chemists, and because de Chancourtois failed to include the diagram and described the helix as a square circle triangle.

Mendeleev got all the glory, and it is his 1869 version (dramatically updated, but still recognizable) that nearly everyone uses today.

This instructable [project] documents my efforts to reimagine a 3D periodic table of the elements, using modern making methods. It's based on the structure of a chiral nanotube, and is made from a 3D printed lattice, laser cut acrylic, a lazy susan bearing, 118 sample vials and a cylindrical lamp.

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Year:  2017 PT id = 1120

Restrepo's Similarity Landscape

Building Classes of Similar Chemical Elements from Binary Compounds and Their Stoichiometries by Guillermo Restrepo, Chapter 5 from: Elements Old and New: Discoveries, Developments, Challenges, and Environmental Implications p 95-110.

From the abstract:

Similarity is one of the key concepts of the periodic table, which was historically addressed by assessing the resemblance of chemical elements through that of their compounds. A contemporary approach to the similarity among elements is through quantum chemistry, based on the resemblance of the electronic properties of the atoms involved. In spite of having two approaches, the historical one has been almost abandoned and the quantum chemical oversimplified to free atoms, which are of little interest for chemistry. Here we show that a mathematical and computational historical approach yields well-known chemical similarities of chemical elements when studied through binary compounds and their stoichiometries; these similarities are also in agreement with quantum chemistry results for bound atoms. The results come from the analysis of 4,700 binary compounds of 94 chemical elements through the definition of neighbourhoods for every element that were contrasted producing similarity classes. The method detected classes of elements with different patterns on the periodic table, e.g. vertical similarities as in the alkali metals, horizontal ones as in the 4th-row platinum metals and mixed similarities as in the actinoids with some transition metals. We anticipate the methodology here presented to be a starting point for more temporal and even more detailed studies of the periodic table.

Lindsay's Periodic Table

Thanks to René for the tip!

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Year:  2017 PT id = 901

Elements Known and now Named in the Year 2017

Elements in the year 2017, now the elements 113 – 118 have been named: Nihonium (113, Nh), Flerovium (114, Fl), Moscovium (115, Mc), Livermorium (116, Lv), Tennessine (117, Ts) & Oganesson (118, Og) have been named.

Taken from this Wikipedia page:

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Year:  2017 PT id = 917

Kurushkin's Spiral Periodic Table

Mikhail Kurushkin has a way of constructing the standard long form periodic table from the Janet Left-Step formulation.

Mikhail writes in his J.Chem.Educ paper DOI: 10.1021/acs.jchemed.7b00242; J. Chem. Educ. 2017, 94, 976?979

"Addition of another s-block to the left of the left-step periodic table [enables it] to be rolled into a spiral so that the left and right s-blocks are merged together and the number of elements is exactly 118. The resulting periodic table is called the "spiral" periodic table, which is the fundamental representation of periodicity":

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Year:  2017 PT id = 739

Alternative Periodic Table

From Useful Charts:

You'll notice that this periodic table looks quite a bit different from the one you're used to. The traditional periodic table is designed to emphasize the concept of valence, which is important for knowing which elements can easily combine with others to form compounds. In contrast, the periodic table below is designed to simply emphasize the way in which atoms are "built" (specifically, how electrons group together into shells and subshells).

It's based on a design proposed by Edward Mazurs in the 1960s. Like the traditional table, this alternative version can be used to find an elements name, number, atomic weight, state of matter, period, group, and block. However, it also contains detailed information on electron configurations and the different types of electron subshells.

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Year:  2017 PT id = 741

New Rendering of ADOMAH Periodic Table

From Valery Tsimmerman, of the PerfectPeriodicTable.com and the ADOMAH Periodic Table:

"I received email from Dr. Marcus Wolf who is a chemist, working on renewable energy and electrochemical storage in Germany, near Nuremberg. He also lectures at Georg Simon Ohm, Technische Hochschule Nürnberg. Attached to his email was new version of ADOMAH Periodic Table that he created. In this new rendering he is using Jensen's Valence Manifold (VM)."

This is what Dr. Marcus Wolf wrote:

"The first one to come up with the idea of using a valence manifold VM = [e + v] as a label for the groups, was Will B. Jensen. He derived it from the very early attempts of Richard Abegg, who, at around 1904, brought up the hypothesis of 'main- and counter-valences', derived from the observable behavior of elements and their compounds in electrochemical experiments. Eric Scerri is citing Jensen in his latest book, in the chapter about Richard Abegg. But Jensen's proper article from 1983 or so is far more detailed and in his later publications he then introduces the valence manifold concept. Last weekend I accidentally observed another consistency between the G-values and their ordering and the valence electron counts, e. If you fix the e value of the starting group in a given l-block as e(initial), you could generate every G-number of a given group by adding the valence vacancy count, v, to it:

G = e(initial) + v.

"That is another hint for the consistency of the VM labelling concept."

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Year:  2017 PT id = 747

NAWA Periodic Tables

Nagayasu Nawa - "A Japanese school teacher and periodic table designer" - has a home page showing all his designs:

NAWA Periodic Tables

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Year:  2017 PT id = 759

Stowe's A Physicist's Periodic Table UPDATED

Stowe's 'A Physicist's Periodic Table' was published in 1989, and is a famous & well respected formulation of the periodic table.

Since 1989 quite a number of elements have been discovered and Jeries A. Rihani has produced an updated and extended version. Click here to see the full size .pdf version:

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Year:  2017 PT id = 760

Clock Prism Periodic Table, Braille Version

From the prolific Nagayasu Nawa, a Braille version of the Clock Prism periodic table:

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Year:  2017 PT id = 761

Stewart's Chemosphere

P J Stewart, a good friend of the periodic table database, has mapped a PT onto a sphere.

PJS writes: "It is Janet Rajeuni 2014  wrapped round a sphere, going back to Mazurs 1965, and Tsimmerman 2006.  Arabic numerals indicate shells (values of principal quantum number); Roman numerals indicate periods."

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Year:  2017 PT id = 764

Moran's Periodic Spiral (Updated)

Jeff Moran has updated his 1999 Periodic Spiral.

Click here for a larger version.

Jeff says: I offer the attached spiral formulation as a way of expressing the relationships of the f and d blocs to group 3:

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Year:  2018 PT id = 774

First Ionisation Energy to the Standard Form Periodic Table

There is debate amongst the cognoscenti about the 'best' representation of the periodic table, and how this 'best' formulation can be explained by [rationalized by] quantum mechanics (QM).

Many feel that the Janet PT formulation, the 'Left Step', is the ideal QM PT, but this formulation does not show periodicity very well, and there are issues with the placement of H, He, Be which spill over into questions about their placement in the standard form PT (the periodic table used in classrooms and textbooks around the world).

However, it is possible to get to the conventional standard form PT directly from the first ionisation energy data, where the 1st ionisation energy is the energy required to convert a gas phase atom (M) into its gas phase positive ion plus electron.

M(g)      →       M+(g)     +     e

The process involves:

 

Note that a similar logic can be applied to atomic radius and electronegativity data.

However, there are issues about the measurement of atomic radius, because atoms are 'soft at their edges', and gas phase atomic radius is not precisely defined. And, electronegativity is a derived parameter.

By Mark Leach

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Year:  2018 PT id = 779

Stowe-Janet-Scerri Periodic Table (Extended)

Stowe's A Physicist's Periodic Table was published in 1989, and is a famous & well respected formulation of the periodic table.

Since 1989 quite a number of elements have been discovered and Jeries A. Rihani has produced an updated and extended version in 2017. This has been further updated, below. Click for the full size .pdf version:

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Year:  2018 PT id = 780

Chemical Galaxy III

Updated from Philip Stewart's Chemical Galaxy II, version III shows all the recently discovered elements, including: 117 (Ts) and 118 (Og).

Click here for the full size .PDF version (which gives more data):

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Year:  2018 PT id = 899

Hoyau's Periodic Table Formulations

From Davy Hoyau in France, a selection of periodic table formulations. Davy writes:

"I can explain how i came up to this solution, to better represent graphically the mathematics of the nature. The great advantage of that solution is to make visible how important are the subrings, and not the rings, of the electronics layers. That's why we can call this representation "the table of subrings".

"They seem to be responsible of element chemistry. However, most of time the atom is represented with the full layer, of 2, 8, 18, 32 available positions for determined quanta of energy. But the most important thing is to see how strange is the table when we only have to count the additional electrons needed to finish to fill the layers, following this suit ; 2, 6, 10, 14 (because 2+6=8, 8+10=18, and 18+14=32).

"The traditional representation make easier to follow, vertically, the type of element. For example, follow the column of copper, silver, gold & roentgenium. They have the most conductivity elements of their subrings.

"Also we can follow the column of the noble gases. And that is a surprise to find a noble gas at the only first subring of the first ring, but at all the second subrings of all other rings. That let imagine an extremely innovative way to fill the free locations of energy, not simple by adding marbles on a sequence of positions, but more like a type of musical chair game (i cant be more precise actually). That show how are possibles the "errors" of filling that this 3D representation can't show, if you watch attentively the known data on the filled layers. For example, vanadium 23 is 2-8-11-2, and chrome 24 is 2-8-13-1."

Davy has also provided some links to his ideas on the web:

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Year:  2018 PT id = 900

Race to Invent the Periodic Table

From PBS Digital Studios, a short-but-fast-moving video about the development of the periodic table during the 19th century, and a discussion about gallium:

Thanks to Eric Scerri for the tip! 
See the website EricScerri.com and Eric's Twitter Feed

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Year:  2018 PT id = 913

Nawa–Scerri Octagonal Periodic System

A spiral periodic table formulation by Nawa, called the Nawa–Scerri Octagonal Periodic System.

Click here for a larger version:

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Year:  2018 PT id = 914

Nawa's 3-D Octagonal Pillar

A 3-D octagonal pillar periodic table model by Nawa, "acccording to Scerri's reverse engineering [of] Mendeleev's 8-column table":

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Year:  2018 PT id = 915

Scerri's Reverse Engineered Version of Mendeleev's Eight Column Table

Eric Scerri has updated – reverse engineered – the classic Mendeleev Table, here, here & here:

Thanks to Eric Scerri for the tip! 
See the website EricScerri.com and Eric's Twitter Feed

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Year:  2018 PT id = 920

Telluric Remix

Philip Stewart writes:

The Telluric Helix (La Vis Tellurique) was the first graphic representation of the periodic system of the elements, conceived as a spiral wound round a cylinder. It was designed in 1862 by Alexandre-Émile Béguyer de Chancourtois, a French mineralogist. 'Telluric' is from Latin tellus, earth, recalling the 'earths', oxides, in which many elements had been discovered.

My 'Telluric Remix' is a return to the cylinder. It combines ideas from Charles Janet (8, not 7, periods, ending with ns2, defined by a constant sum of the first two quantum numbers, n and l), Edward Mazurs (all members of each electron shell in the same row) and Valery Tsimmerman, (a half square per element).

The printable version is available (click here for the full size version) to make your own:

I have not claimed copyright; please copy and share but acknowledge my authorship. stewart.phi@gmail.com

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Year:  2018 PT id = 936

Sistema Periódico Binodico

By Julio Antonio Gutiérrez Samanez, who writes:

"Sistema Periódico Binodico. Nuevo Paradigma Matematizado. I have followed the work of the wise Mendeleev, of Emil de Chancourtois, of Charles Janet; inspired by the work of my countryman Dr. Oswaldo Baca Mendoza. It is in Spanish but soon I will have the English version."

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Year:  2018 PT id = 938

Puddenphatt & Monagham Periodic Table

Jeries Rihani's version of R. J. Puddenphatt and P. K. Monaghan, published in1989, but is not an exact copy. The differences are as follows:

  1. It adds color: YELLOW for the s-block, GREEN for the p-block, BLUE for the d-block and PURPLE for the f-block.
  2. It avoids being congested since it excludes the electronic configurations of the elements.
  3. It is updated and includes the atomic numbers 119 and 120.
  4. It shows that it is symmetrical around the vertical axis.
  5. The f-block, like all the other blocks, ends with even atomic numbers.

Puddephatt and Monaghan say "their table is after Philips and Williams":

Ref, Phillips CSG & Williams RJP 1965, Inorganic Chemistry, I: Principles and Non-metals, Clarendon Press, Oxford, p. 40.

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Year:  2018 PT id = 946

Periodical System (Binodic Form): a new mathematical paradigm

By Julio Antonio Gutiérrez Samanez, who writes:

"System devised and prepared by the Peruvian chemical engineer, Julio Antonio Gutiérrez Samanez, deals with a new conception of Mendeleev's Law as a mathematical function and a new description of the process of forming the series of chemical elements according to mathematical laws and dialectical processes of changes quantitative and qualitative under a dynamic spiral architecture in 3D, which is postulated as a new scientific paradigm."

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Year:  2018 PT id = 1202

Beylkin's Periodic Table of The Elements

René Vernon writes: Beylkin's Periodic Table of The Elements has 4n2 periods, where n = 2,3..., and shows symmetry, regularity, and elegance, more so than Janet's left step table.

Beylkin (an applied mathematician) writes:

"Let us take a continuous strip of paper and, on one side of the strip, write all the elements in the order of their atomic numbers. We then form a spiral with the strip such that the two most chemically distinct groups, the group of halogens (in which we include hydrogen) and the group of noble gases, are properly aligned. By flattening the strip on a plane and folding it in the middle, we obtain the new periodic table..."

Other features:

There are four new(ish) groups: Ti-Zr-Ce-Th, V-Nb-Pr-Pa, Cr-Mo-Nd-U and Mn-Tc-Pm-Np. For the actinide elements of these groups, the resemblance of the earlier actinides to their lighter transition metal congeners is well known. For the lanthanide elements, Johansson et al. (2014) wrote a nice article about Ce and its cross-road position. For Pr, Nd, and Pm, all of these are known in multiple oxidations states (+2, +3, +4 excl. Pm, and +5 for Pr only), just as the transitions metals are so known.


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Year:  2018 PT id = 948

Ziaei's Circular Periodic Table

Minoo Ziaei writes:

"My father, Manouchehr Ziaei, has an interesting design of the periodic table, which I helped him draw using AutoCAD. He is very keen in introducing [this formulation] to potential interested viewers, he was recommended to visit [the Chemogenesis Database of Periodic Tables] website."

Click image to enlarge:

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Year:  2018 PT id = 949

Nawa's V.E.T. Periodic Table & Hourglass

Nagayasu Nawa, the prolific designer of periodic tables, here and here, has come up with an orbital filling periodic table and a corresponding hourglass animation. Nawa writes:

"I have turned the v.e.c. PT into the GIF animation that I call the electron hourglass, 1 second for each element. It takes 120 seconds from 1H to 120 Ubn. I have coloured orbital with colour derived from each shell's name, such as:

Click image to enlarge.

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Year:  2018 PT id = 951

Janet's Left-Step with Ground Level Microstates

By Valery Tsimmerman, who writes:

Janet's LST with ground level microstate information and total spin graph shown for each group of elements. The top line represents number of electrons in open sub-shells (with exception of six anomalous elements). Information shows physical (spectroscopic) basis of the groups.

The zigzag line on top is a graphic representation of Hund's rule showing the total inherent spins of atoms and the total spin of Cu is 1/2, same as for Ag and Au. When it comes to ground level atomic microstates and Hund's rule Cu is not anomalous (2S1/2), despite its anomalous electron configuration.

The diagram represents Hund's Rule that states that "the lowest energy atomic state is the one that maximizes the total spin quantum number for the electrons in the open subshell" (Wikipedia). Y-axis is the total spin and x-axis is number of electrons in open shells (with exception of six anomalous elements).

First, I would like to make couple of general comments. When discussing periodicity, they typically talk about chemical properties and electron configurations/differentiating electrons, etc, but those are not specific enough. For each electron configuration there are multiple microstates. For example, for single electron configuration of carbon there are over 30 microstates and only one of them corresponds to ground level. So, microstates express combined physical/spectroscopic properties of whole atoms and, the most important, combined properties of electrons located in open subshells.

Now, look at ground level term symbols in each group. I see amazing consistency, especially in the main groups. It tells me that groups are not only chemical, but physical!

Looking at periods one can see that all periods in s, p & d blocks begin with elements that have multiplicity M=2 and end with M=1. This is also true for f-block if it starts with La and Ac and ends with Yb and No. This puts Lu and Lr firmly in group 3. Placing La and Ac in group three ruins spectroscopic consistency.

Click here image to enlarge the PT below.

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Year:  2018 PT id = 952

ADOMAH Periodic Table Formulation with NIST Data

By Valery Tsimmerman, who writes:

I would like to share with you another variant of my ADOMAH periodic table formulation that holds additional spectroscopic information.

Click here image to enlarge the PT below.

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Year:  2018 PT id = 1220

Elements in Six Dimensions

The Elements in Six Dimensions, by Gerald Eadie, arranged by volume periods of nuclide mass averages:


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Year:  2018 PT id = 977

Simpson's 4-Dimensional Version of the ADOMAH Periodic Table

Doug Simpson writes:

"Valery Tsimmerman's ADOMAH table and website got me started as a periodic table hobbyist. The attached photos show what I've been up to. Valery's observation that n, l, & m conspire to generate a half-filled tetrahedral lattice inspired me to create a 4D periodic table using all four quantum numbers as coordinates."

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Year:  2018 PT id = 1261

Kurushkin's 32-Column Periodic Table & Left-step Periodic Table United

Dr Mikhail V. Kurushkin, 32-column Periodic Table & Left-step Periodic Table United: https://bernalinstitute.com/events/bernal-seminar-by-dr-mikhail-v-kurushkin-itmo-universityrussia/

ABSTRACT
The pursuit of optimal representation of the Periodic Table has been a central topic of interest for chemists, physicists, philosophers and historians of science for decades (Leigh, 2009; Scerri, 2009). Should the Periodic Table of Chemical Elements first and foremost serve the needs of chemists as implied by its name? Or should it start from considerations of before quantum mechanics and thus be more appealing to physicists (Scerri, 2010, 2012b)? Is there a representation which overcomes this problem? The Periodic Table is from a fundamental point of view a graphic representation of periodicity as a phenomenon of nature. While the 32-column Periodic Table, popularized by Glenn T. Seaborg, is considered by chemists the most scientifically correct representation (Scerri, 2012a), physicists apparently prefer the Left-step Periodic Table above all (Scerri, 2005; Stewart, 2010). Alternatively, it is suggested that a rigorously fundamental representation of periodicity could only take the form of a spiral as, evidently, the abrupt periods of 2-D Periodic Tables contradict the gradual increase of atomic number, and the spiral representation reconciles this debate (Imyanitov, 2016). An optimal representation is eagerly sought after both for the needs of philosophy of chemistry and chemical education as their never-ending dialogue secures a thorough methodology of chemistry. The aim of the present work is to show that the 32-column Periodic Table and the Left-step Periodic Table can co-exist in mutual tolerance in a form of what Philip Stewart has already called Kurushkin’s Periodic Table (Kurushkin, 2017), Figure 1 below.

René Vernon writes:

"Kurushkin reminds us that the Janet left step table (with Sc-Y-Lu-Lr, and He over Be), and the version of the table with the s-elements on the right (also with Sc-Y-Lu-Lr, and He over Be) are interchangeable.

"For an earlier paywall version which includes a short video see:

Kurushkin M 2018, Building the periodic table based on the atomic structure, Journal of Chemical Education, vol. 94, no. 7, pp. 976–979, https://pubs.acs.org/doi/10.1021/acs.jchemed.7b00242

"Kurushkin’s interchangeable approach extends to tables with group 3 as either Sc-Y-La-Ac or Sc-Y-Lu-Lr. See Vernon's Yin Yang of The Periodic Table https://www.meta-synthesis.com/webbook/35_pt/pt_database.php?PT_id=1252"

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Year:  2018 PT id = 494

IUPAC Periodic Table of The Elements

The 1 Dec 2018 IUPAC (International Union of Pure and Applied Chemistry) Periodic Table of The Elements. For updates to this table click here.

By virtue of its work in relation with the chemical elements, IUPAC can dispense a periodic table that is up-to-date. IUPAC involvement covers various aspects of the table and data that it unveils, and several reports and recommendations, some quite recent, attest of that input. In particular, IUPAC is directly involved in the following:

  1. establishing the criteria for a new element discovery
  2. defining the structure of a temporary name and symbol
  3. assessing claims resulting in the validation and assignation of an element discovery
  4. coordinating the naming of a new element, involving the research laboratory and allowing for public comments
  5. setting up precise rules for how to name a new element
  6. defining Group 1-18 and collective names
  7. determining which elements belong to Group 3
  8. regularly reviewing standard atomic weights

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Year:  2018 PT id = 1278

Short Form of Mendeleev’s Periodic Table of Chemical Elements

Andriiko, A.A., Lunk, HJ. The short form of Mendeleev’s Periodic Table of Chemical  Elements: toolbox for learning the basics of inorganic chemistry. A contribution to celebrate 150 years of the Periodic Table in 2019. ChemTexts 4, 4 (2018). https://doi.org/10.1007/s40828-018-0059-y

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Year:  2019 PT id = 1024

5 Periodic Tables We Don't Use (And One We Do)

SciShow says:

"From Mendeleev's original design to physicist-favorite "left-step" rendition, the periodic table of elements has gone through many iterations since it was first used to organize elements 150 years ago - each with its own useful insights into the patterns of the elements":

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Year:  2019 PT id = 1026

Papers of Mendeleev, Odlings, Newlands & Chancourtois from the 1860s

Peter Wothers from the University of Cambridge with Sir Martyn Poliakoff, of the University of Nottingham discuss the discovery/development of the periodic table in the 1860s with the original publications.

Links to some of the formulations discussed in the video:

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Year:  2019 PT id = 1027

Chemical Bonds, Periodic Table of

The Max Planck Society (M-P-G, Max-Planck-Gesellschaft) has an article about the hidden structure of the periodic system.

Guillermo Restrepo, MPI for Mathematics in the Sciences:

"A periodic table of chemical bonds: Each of the 94 circles with chemical element symbols represents the bond that the respective element forms with an organic residue. The bonds are ordered according to how strongly they are polarized. Where there is a direct arrow connection, the order is clear: Bonds of hydrogen, for example, are more polarized than bonds of boron, phosphorus, and palladium. The same applies to rubidium in comparison to caesium, which has particularly low polarized bonds and is therefore at the bottom of the new periodic table. If there is no direct arrow between two elements, they may still be comparable – if there is a chain of arrows between them. For example, the bonds of oxygen are more polarized than the bonds of bromine. Bonds represented by the same colour have the same binding behaviour and belong to one of the 44 classes.":

Thanks to René for the tip!

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Year:  2019 PT id = 1028

Slightly Different Periodic Table

The Max Planck Society (M-P-G, Max-Planck-Gesellschaft) has an article about the hidden structure of the periodic system.

Guillermo Restrepo, MPI for Mathematics in the Sciences:

"A slightly different periodic table: The table of chemical elements, which goes back to Dmitri Mendeleev and Lothar Meyer, is just one example of how objects – in this case the chemical elements – can be organized in such a system. The researchers from Leipzig illustrate the general structure of a periodic table with this example: The black dots represent the objects ordered by the green arrows. Using a suitable criterion, the objects can be classified into groups (dashed lines) in which the red arrows create a sub-order":

Thanks to René for the tip!

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Year:  2019 PT id = 1030

Béguyer de Chancourtois' Vis Tellurique: A Better View

The content of Béguyer de Chancourtois' Vis Tellurique decanted into a flat table.

The flattened version – prepared by Conal Boyce – shows important aspects that cannot be 'read' from the helix itself.

Click to enlarge

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Year:  2019 PT id = 1040

Frog Periodic Table

One of the frogs from Stockport's (UK) Giant Leap Frog Art Trail. This frog is Chemit.

Thanks to Helen P for the tip!

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Year:  2019 PT id = 1046

Group 3 of The Periodic Table

There are several ways in which the 'common/modern medium form' periodic table are shown with respect to the Group 3 elements and how the f-block is shown. Indeed, there is even some dispute about which elements constitute Group 3. There are three general approaches to showing Group 3:

(See Scerri's take and Thyssen's view on this matter.)

So, which one of the three options is 'better'?

The general feeling amongst the knowledgeable is that leaving a gap is not an option, so it comes down to:

Sc, Y, La, Ac     vs.     Sc, Y, Lu, Lr

René Vernon has looked as the properties of the potential Group 3 elements, including: densities, 1st ionisation energies, ionic radii, 3rd ionisation energies, melting points & electron affinity:

Figure 1 shows that a Z plot of the density values for Sc, Y, La, Lu Ac and Lr follows a smooth trendline.

Figure 2 shows that a Z plot of the first ionization energy values follows a smooth trendline.

Figure 3 shows that a Z plot of the 6-coordinate ionic radii for the subject elements bifurcates after Y into an -La-Ac tranche (R2 = 0.99) and a -Lu-Lr branch (0.61). The trendline for -La-Ac is smoother.

Figure 4 shows a Z plot of 3rd ionisation energy values bifurcating after Y into a -Lu-Lr tranche (R2 = 0.83) and a -La-Ac branch (0.98). The trendline for -La-Ac is smoother.

Figure 5 shows that a Z plot of the melting points bifurcates after Y into an -Lu-Lr (R2 = 0.72) tranche and a -La-Ac (0.71) branch. While the fit values for the two options are comparable, -Lu-Lr is preferred since Y and La show a greater departure from trend.

Figure 6 has a Z plot of electron affinity values bifurcating after Y into an -La-Ac tranche (R2 = 0.85) and a -Lu-Lr branch (0.99).[iii] The trendline supports Lu-Lr. The trend-lines by themselves are inconclusive: two show no difference; two support -La-Ac; two support -Lu-Lr.

Upon reviewing the data, René's comment is that: "The net result is that the two options seem inseparable" and he proposes that IUPAC adopt the following periodic table numbering system:

Professor Sir Martyn Poliakoff's [of the Periodic Videos YouTube channel & Nottiningham University] take on this matter:

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Year:  2019 PT id = 1050

Janet Rejuvenated: Stewart-Tsimmerman-Nawa

An updated version of Philip Stewart's Janet Rejuvenated by Valery Tsimmerman redrawn by Nawa.

Click here to enlarge.

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Year:  2019 PT id = 1053

Chavhan's Third Generation Periodic Table of the Elements

Randhir Bhavial Chavhan's Third Generation Periodic Table of the Elements poster, as presented 4th International Conference on Periodic Table at St. Petersburg, Russia.

Click here, or on the image, to enlarge:

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Year:  2019 PT id = 1057

Meyer's NYT Graphic

A nice graphic by Alex Eben Meyer in the New York Times accompanying an article about the periodic table and some of Sir Martyn Poliakoff ideas.

Thanks to Eric Scerri for the tip! 
See the website EricScerri.com and Eric's Twitter Feed.

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Year:  2019 PT id = 1059

Where Mendeleev Was Wrong

A paper by Gábor Lente, Where Mendeleev was wrong: predicted elements that have never been found, from ChemTexts https://doi.org/10.1007/s40828-019-0092-5.

As is well known, Mendeleev sucessfully predicted the existance of several elements, but he was not always correct.

Thanks to Eric Scerri for the tip! 
See the website EricScerri.com and Eric's Twitter Feed.

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Year:  2019 PT id = 1064

Samanez's Binodic Periodic System, New Mathematical Paradigm Poster

Julio Antonio Gutierrez Samanez (Master's student in chemical engineering at the San Antonio Abad National University of Cusco, Peru) presented a poster at the 4th International Conference on the Periodic Table arranged by IUPAC, Saint Petersburg, Russian Federation, July 2019. See the high resolution .PDF file.

More here and at kutiry.com        

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Year:  2019 PT id = 1065

Mendeleev 150

Mendeleev 150 is the 4th International Conference on the Periodic Table. The event welcomed nearly 300 guests from over 30 countries and has become one of the key events of IUPAC's International Year of the Periodic Table.

Thanks to Eric Scerri – who appears – for the tip! 
See the website EricScerri.com and Eric's Twitter Feed.

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Year:  2019 PT id = 1066

International Year of the Periodic Table with Eric Scerri

A YouTube video about IUPAC's International Year of the Periodic Table:

Thanks to Eric Scerri – who appears – for the tip! 
See the website EricScerri.com and Eric's Twitter Feed.

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Year:  2019 PT id = 1067

Scott Van Note Periodic Table Sculpture

On the Saatchi Art website, a 3D periodic table Sculpture by Scott Van Note.

Sculpture: Metal (Bronze). Ten made for the local ASM international chapter.

Loops and changes of direction show electron shell filling. S,P,D,F with S just a change of direction. Continuous spiral from top to bottom. New loops introduce as the electron shell would. Does not show the out-of-order shell filling.

Keywords: periodic,   science,   sculpture,   functional,   nerd

Thanks to Roy Alexander for the tip!

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Year:  2019 PT id = 1068

C&EN No Agreement

From C&EN: The periodic table is an icon. But chemists still can't agree on how to arrange it:

Thanks to Eric Scerri – who appears – for the tip! 
See the website EricScerri.com and Eric's Twitter Feed.

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Year:  2019 PT id = 1069

Alexander Arrangement Unwrapped... and Rewrapped

In mid-2019 Roy Alexander – of the Alexander Arrangement – produced an intriguing new formulation in sketch form that shows the p, d & f blocks moving away from the s block in three dimensional space:

Roy has now expanded this into a full blown new formulation. (Click image to enlarge):

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Year:  2019 PT id = 1077

Weise's Tetrahedral Periodic Table

A Facebook video by Dmitry Weise showing how the conventional periodic table can be morphed into a tetrahedral formulation via the Janet Left Step:

Thanks to Eric Scerri – who appears – for the tip! 
See the website EricScerri.com and Eric's Twitter Feed.

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Year:  2019 PT id = 1083

Cylindrical Periodic Table of Elements

Two YouTube videos by Takehiko Ishiguro (original & updated): Cylindrical Periodic Table of Elements.

Three types of the cylindrical periodic table of elements are demonstrated with a rotating table. Comments on them are given at the end of the video (in English).



The Japanese version is here.

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Year:  2019 PT id = 1094

Physical Origin of Chemical Periodicities in the System of Elements

From de Gruyter: Physical origin of chemical periodicities in the system of elements, Chang-Su Cao, Han-Shi Hu, Jun Li* and W. H. Eugen Schwarz*, Pure Appl. Chem. 2019; 91(12).

Published Online: 2019-11-30 | DOI: https://doi.org/10.1515/pac-2019-0901 (open access)

Abstract:

The Periodic Law, one of the great discoveries in human history, is magnificent in the art of chemistry. Different arrangements of chemical elements in differently shaped Periodic Tables serve for different purposes. "Can this Periodic Table be derived from quantum chemistry or physics?" can only be answered positively, if the internal structure of the Periodic Table is explicitly connected to facts and data from chemistry.

Quantum chemical rationalization of such a Periodic Tables is achieved by explaining the details of energies and radii of atomic core and valence orbitals in the leading electron configurations of chemically bonded atoms. The coarse horizontal pseudo-periodicity in seven rows of 2, 8, 8, 18, 18, 32, 32 members is triggered by the low energy of and large gap above the 1s and nsp valence shells (2 ≤ n ≤ 6 !). The pseudo-periodicity, in particular the wavy variation of the elemental properties in the four longer rows, is due to the different behaviors of the s and p vs. d and f pairs of atomic valence shells along the ordered array of elements. The so-called secondary or vertical periodicity is related to pseudo-periodic changes of the atomic core shells.

The Periodic Law of the naturally given System of Elements describes the trends of the many chemical properties displayed inside the Chemical Periodic Tables. While the general physical laws of quantum mechanics form a simple network, their application to the unlimited field of chemical materials under ambient 'human' conditions results in a complex and somewhat accidental structure inside the Table that fits to some more or less symmetric outer shape. Periodic Tables designed after some creative concept for the overall appearance are of interest in non-chemical fields of wisdom and art.

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Year:  2019 PT id = 1095

Global Periodic Table

Brian Gregory of keytochemicstry.com presents a Global Periodic Table.

The figure below shows the subshell strings aligned in columns based on the total pool of valence electrons as described above. This is the global periodic table. Each column constitutes a global group. Each term in column 1 launches a global period. The global periodic table is a purely mathematical matrix that assigns precise row and column coordinates to all positive integers but makes no predictions as to the order in which subshells are filled. Read more here.

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Year:  2019 PT id = 1099

Colburn's 2019 Periodic Table of The Elements

Justin Lee Colburn writes:

"What is unique to my Periodic Table is the fact that any Elements Electron Spin can be identified for Orbital Diagrams using a technique I have called 'Element Shifting'.

"Elements with an Up spin Valence Electron are shifted up and Elements with a down spin are shifted down. Also, the Hund's rule Exceptions are Highlighted in the Transition Metals so their orbital diagrams can also be identified easily.

"In addition, an accurate numbering system can be applied to all the elements with Helium placed in Group 2 instead of Group 18. I believe that quantitative data should take priority when giving elements their position, but this system is meant to be dynamic rather than static. In my Periodic Table System, (1-8) corresponds to Valence Electrons in the s and p orbitals and then the 9-18 and 19-32 corresponds to core electron in d and f orbitals .

I believe that it is important to begin by showing students the first 20 Elements FIRST because they all add Outer Valence Electrons which makes the Periodic Table logic easy to follow. Also explaining that Hydrogen and Helium are anomalies with more than one logical position, can really help clear up confusion for new students.

"After element 20, the Transition Elements such as scandium 21 begin adding core electrons in the d orbital the current standard (1-18) numbering system does not reflect this. One of the reasons why I prefer keeping the s and p block elements on the outside of the table and the f and d block elements on the inside is because of how they add electrons to their orbitals.

"I have been developing a curriculum based on this system that I believe will help students learn and understand the logic and trends of The Periodic Table more efficiently than the standard. Rather than memorizing Element information, Students will truly be able to follow the logic based on the location of the Elements, simple counting and using the numbering system."

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Year:  2019 PT id = 1101

International Year of the Periodic Table with Eric Scerri

Interview with leading expert on the periodic table and UCLA professor, Eric Scerri, to celebrate the International Year of the Periodic Table.

Thanks to Eric Scerri – who appears – for the tip! 
See the website EricScerri.com and Eric's Twitter Feed.

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Year:  2019 PT id = 1124

Elements & Anti-Elements (Atom-to-Adam)

Justin Colburn writes:

"The underlying order of the Atoms and asking the question of Intelligent Design has inspired my work. I have developed a new and improved Periodic Table of Elements that restores the Lanthanides and Actinides in their proper positions while also applying a complete and accurate numbering system. (1-8) numbering in s and p blocks correspond to Valence Electrons with (9-18) and (19-32) corresponding to core Electrons in the d and f block Elements.

"I have also inverted the Periodic Table of Elements which reflects the "missing" Anti Matter of our Universe. Unique to my Periodic Table of Elements is the ability to easily identify any Elements Electron Spin for Orbital Diagrams by shifting Elements up or down. Lastly I have highlighted some of the AUFBAU Exceptions or Electron Configuration anomalies in the transition metals. Interestingly, standing the Periodic Tables upright resembles the image of human beings, hence the title of my project, from Atom to Adam."


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Year:  2019 PT id = 1125

Tasset's Version of Schaltenbrand

Tasset's version of Schaltenbrand's Helical Periodic Table

Harry F. Tasset writes:

"I am very happy to be able to submit a periodic table that represents the culmination of many years of study. Much of my creative inspiration came from my father Everett and my two chemist brothers, Carl and Emmett. Also, I must mention Isaac Asimov.

"I have considered the gravity of this release and believe this is for the betterment of mankind. It is a moot point at this stage to regret the mistakes made in the 1930's when the Lanthanoids and Actinoids were separated, like the middle of a tree magically suspended to its side. Suffice it to say that the table was meant to be a complete whole."

Click the image to enlarge

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Year:  2019 PT id = 1133

Vernon's Oxidation Number Periodic Table

René Vernon's periodic table showing oxidation number trends.

René writes:

Click image to enlarge

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Year:  2019 PT id = 1194

IUPAC Periodic Table Challenge: Nobelium Contest

IUPAC Periodic Table Challenge: Nobelium Contest. DOI: https://doi.org/10.1515/ci-2020-0204

After a first round based on the knowledge of the participant of the chemical elements, in this new phase of the Challenge, participants were invited to share their passion and creativity about chemistry. The entries were supposed to highlight the role of the Periodic Table in a creative manner. We received a variety of submissions including videos, poems, songs, and paintings. Entries were categorized into science, art, and outreach or community activities related to the science education and the Periodic Table. We were genuinely surprised and inspired by the dozens of pieces of art that we were receiving from all around the world. A jury as well as popular votes casted for each entry decided who were to receive the special limited edition IUPAC Periodic Tables signed by the Nobel laureates. That was one of the most difficult tasks of this activity, as the quality, originality, and diversity of the entries were truly amazing.

The artist is Swaprabha Chattopadhyay, a high school student from India.

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Year:  2019 PT id = 958

Leach's Empirical Periodic Table

The common/conventional/standard 'medium form' periodic table is based on the 1945 Seaborg formulation, and it is interesting to explore where this formulation – and its 1939 predecessor – come from. (Interestingly, the Werner formulation of 1905 is not cited as a source and there are no other similar formulations in the (this) Periodic Table Database.)

However, it is possible to get to the common/conventional/standard periodic table directly from two readily available data-sets: (1) first ionisation energy of the gas phase atoms, and (2) atomic radius.

The procedure involved plotting the data, rotating 90°, squeezing vertically and smoothing. The points need a little tidying up, and then they can be mapped directly onto the Seaborg formulation periodic table.

The only element which does no obviously 'line-up' with the periodic table is hydrogen, but many modern periodic tables have H floating as it is not obvious if it should be considered to be a Group 1 alkali metal or a Group 17 halogen.

Note:

There are advantages and disadvantages to each data set. The 1st ionisation energy data from NIST is known with up to seven significant figures of precision, but the data jumps about at times due to the presence of the s & p-orbitals, which appears to make the data a little noisy. (Actually, this 'noise' is embedded information about the electronic structure of the atoms.) The atomic radius gives smoother data, but as gas phase atoms do not have hard edges calculated (Clementi 1967) rather than experimental values, must be used.

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Year:  2019 PT id = 959

UCLA Periodic Table (Proposed)

Eric Scerri writes:

During an office hour here at UCLA with a couple of students – Annelise Gazale & Chidinma Onyeonwu – we came up with a 'new periodic table'.

The basis of it is related to a point you frequently make against the Left Step formulation, namely that it messes up trends in atomic radius etc.

So how about this: Traditionally on the right side of the table elements become less reactive as we move down, but on the right side of the table elements become more reactive as we move down. Consequently, the noble gases are anomalous in the way they usually sit since they become more reactive as we move down the table.

Ergo: Move the noble gases to the left edge of the table. (Yes, this has been done before of course but not for this reason.)

Thanks to Eric Scerri for the tip! See the website EricScerri.com and Eric's Twitter Feed.

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Year:  2019 PT id = 962

Möbius-Escher Periodic Table

A comment article in Nature by Prof. Eric Scerri about quantum mechanics and the periodic table:

"Can quantum ideas explain chemistry's greatest icon? Simplistic assumptions about the periodic table lead us astray.

"Such has been the scientific and cultural impact of Dmitri Mendeleev's periodic table of the elements that many people assume it is essentially complete. [But] in its 150th year, can researchers simply raise a toast to the table's many dividends, and occasionally incorporate another heavy synthetic element?

"No – this invaluable compilation is still not settled. The placements of certain elements, even hydrogen and helium, are debated."

The article is accompanied by a fantastic illustration by Señor Salme with ideas from the Möbius strip and M.C. Escher:

Click image to enlarge:

Another Señor Salme PT image:

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Year:  2019 PT id = 967

ElementBook Braille version of the AAE

From Roy Alexander of the AAE (Alexander Arrangement of the Elements):

"My [first] contribution to celebrate this Year of the Periodic Table is to reach out to folks who have yet to see what everyone's talking about, so they can get the feel of it: a 3D periodic table in Braille."

For the premise for this PT, here.

For your own model (with Braille) of the ElementBook: print*, cut out each part at the outside blue lines, etc.

The ElementBook Braille version of the AAE is in the beta-test phase for the rest of the year, so if any of you know of an aspiring chemist who would be willing to use it while learning (and keep me informed of that experience all year) send them to www.chemicalelementsystem.com/braille/

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Year:  2019 PT id = 969

Kid's Periodic Table

From Cognitive Classroom, a Kid's 'cut-down' Periodic Table:

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Year:  2019 PT id = 979

Döbereiner Revisited

Gordon Marks has developed a "Döbereiner Revisited" periodic table. Read all about it here.

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Year:  2019 PT id = 982

Archetypes of Periodic Law

Archetypes of Periodic Law by Dmitry Weise, read more on the website.

One of the creators of quantum mechanics Wolfgang Ernst Pauli wrote in his work The Influence of Archetypal Ideas on the Scientific Theories of Kepler (1948):

"The process of understanding nature as well as the happiness that man feels in understanding – that is, in the conscious realization or new knowledge – seems thus to be based on a correspondence, a 'matching' of inner images pre-existent in the human psyche with external objects and their behavior. This interpretation of scientific knowledge, of course, goes back to Plato and is, as we shall see, advocated very clearly by Kepler. These primary images, which the soul can perceive with the aid of an innate 'instinct', are called by Kepler archetypal. Their agreement with the 'primordial images' or archetypes introduced into modern psychology by C. G. Jung and functioning as 'instincts of imagination' is very extensive. A true spiritual descendant of the Pythagoreans, he attached the utmost importance to geometric claiming that its theorems 'have been in the spirit of God since eternity'. His basic principle was: 'Geometria est archetypus pulchritudinis mundi' (Geometry is the archetype of the beauty of the world)."

Dmitry writes:

"The key archetype, in our opinion, is the concept of the square and its gnomon. This is due to the well-known fact that the electron filled shell contains 2n2 electrons, and the number of electrons on the subshell is twice the odd number; the gnomon of the square. Triangle, tetrahedron, square pyramid, octahedron, pyramid-like figures composed of square layers are also considered. The methodical concept for these constructions is the figurate numbers, actively studied by the Pythagoreans. The tables of the periodic law built on the motifs of ancient folk and modern ornaments take a special place. They include not only geometric archetypes, but also magic-symbolic, cultural and religious archetypes of the collective unconscious. Note that the periodic law table, built on the basis of the Native American ornament, surpasses the modern Mendeleev table in the parameter reflecting quantum numbers in its structure."

Note the final photograph below shows Prof. Martyn Poliakoff of The University on Nottingham and Periodic Videos:

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Year:  2019 PT id = 984

Telluric Remix in Colour

Philip Stewart writes (this is the same text that accompanies the 2018 B/W version):

The Telluric Helix (La Vis Tellurique) was the first graphic representation of the periodic system of the elements, conceived as a spiral wound round a cylinder. It was designed in 1862 by Alexandre-Émile Béguyer de Chancourtois, a French mineralogist. 'Telluric' is from Latin tellus, earth, recalling the 'earths', oxides, in which many elements had been discovered.

My 'Telluric Remix' is a return to the cylinder. It combines ideas from Charles Janet (8, not 7, periods, ending with ns2, defined by a constant sum of the first two quantum numbers, n and l), Edward Mazurs (all members of each electron shell in the same row) and Valery Tsimmerman, (a half square per element).

I have not claimed copyright; please copy and share but acknowledge my authorship. stewart.phi@gmail.com

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Year:  2019 PT id = 1246

Periodic Table of the Elements Coloring Book

Periodic Table of the Elements Coloring Book

Project managing and chemistry overseen by Yann Brouillette (Faculty, Chemistry, Dawson College). Element representations and cover by Dawson College Illustration & Design students (2nd year)* overseen by Meinert Hansen (Faculty, Illustration & Design, Dawson College).


Thanks to René for the tip!

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Year:  2019 PT id = 996

Grainger's Elemental Periodicity with "Concentric Spheres Intersecting Orthogonal Planes" Formulation

From Tony Grainger, an Elemental Periodicity formulation with concentric spheres intersecting orthogonal planes.

Tony writes:

"I hand sketched this periodic table about a decade ago and placed it on my cubicle window at UTAS, with minimal comments from work mates. It bears some similarity to other formulations in the database, especially when cut along the left axis and laid flat. The concept of all elements of a period being aligned along orthogonal planes cutting a sphere was inherent in the original sketch. When I began using SVG about five years ago I realised I could draw this as a real projection of the 3D model. It was on the back burner, until I found the original sketch during a tidy up."

There are two images of this 3D formulation: an "inside_corner_below/outside_corner_above" (top image) and an "outside_corner_below/inside_corner_above" lower image.

 

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Year:  2019 PT id = 1005

Schaltenbrand's Helical Gathering of the Elements

From the RSC Website:

"A glistering, shining spiral made of silver, gold, platinum, palladium and a diamond forms the show-stopping apex of the tribute from the University of Cambridge's St Catharine's college to the International Year of the Periodic Table.

"Commissioned to match George Schaltenbrand's 1920 design for a helical gathering of the elements – albeit extended to all 118 current elements – and signed by Yuri Oganessian, it is almost certainly the most expensive periodic table in the world."

Thanks to Eric Scerri for the tip!
See the website EricScerri.com and Eric's Twitter Feed.

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Year:  2019 PT id = 1008

Poliakoff's Inverted Periodic Table

From Nature Chemistry. Martyn Poliakoff et al write:

"The inverted periodic table is obtained by rotating the conventional one by 180° about a horizontal axis.

"a, The lighter elements are now at the bottom and the filling of the electron shells occurs upwards. Just like the traditional representation, many properties (for example, atomic number) increase across the table as one proceeds from left to right, but in the inverted version, the same properties now increase as one moves from the bottom to the top, which is the way that most graphs are plotted. Also like the conventional table, the lanthanides and actinides still sit uncomfortably in an isolated block.

"b, In principle, this could be overcome by inverting the 'long form' of the table but, like the conventional long form, it is probably too elongated to be very useful to most chemists."

Thanks to Eric Scerri for the tip!
See the website EricScerri.com and Eric's Twitter Feed.

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Year:  2019 PT id = 1013

Moran's Periodic Spiral (2019)

Jeff Moran has been working on his Periodic Spiral for more than twenty years. Here is the latest iteration, click to enlarge:

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Year:  2019 PT id = 1014

NAWA's Version of Moran's Periodic Spiral

Periodic table designer Nagayasu Nawa has put his spin on Moran's Periodic Spiral:

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Year:  2019 PT id = 1019

Stewart's Quantahedron Formulation

From Philip Stewart, here & here, comes a three dimensional Quantahedron Formulation.

Philip writes:

"The Quantahedron is based on Tsimmerman's Adomah cube, realised in transparent plastic, in the usual order in which Z values are read, printed on separable blocks so that it can be assembled."

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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –


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