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The INTERNET Database of Periodic Tables


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

pre 1900 formulations 1900 to 1949 formulations 1950 to 1999 formulations 2000 to 2009 formulations Spiral formulations 3 dimensional formulations
Data mapping periodic tables Miscellaneous periodic tables Books and reviews non-chemistry periodic tables All periodic tables

The 8 Periodic Tables most recently added to the database:

2010     Ionic Radii Database Periodic Table
2016     Genetic Codon Periodic Table
2016     Collective Work of Chemists
2016     Where Your Elements Came From Periodic Table
2016     Valentine Periodic Table
1990     Circular Model of the Atom: Opposition in the Elements
2015     Protein Complexes, Periodic Table of
2002     Tetrahedral Twist: Chemistry Puzzle and Teaching Device

2010

Ionic Radii Database Periodic Table

By the Atomistic Simulation Group in the Materials Department of Imperial College, a database of ionic radii:

Genetic Code Periodic Table

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2016

Genetic Codon Periodic Table

Heinrich Ferreira, splicejunction.blogspot.com, has created a 'periodic table' for the 20 amino acids, organized by generic code and hydrophobic value.

"I realized that when one orders the codons in the genetic code by Hamming distance of base changes between the 64 different codons for the 20 amino acids, that the amino acids with similar hydrophobic/polar nature automatically cluster together.

"This shows how the genetic code is optimized to minimize the production of incorrectly folded proteins.

"Thus, in the case of a single base change which results in a different amino acid being used, the chances are that incorrect amino acid will have the same or similar hydrophobic qualities are actually quite high due to the codons appearing next to each other on the Genetic Code periodic table.

"This representation, like the periodic table, is a torus where the adjacent codons wrap around from bottom to top and left to right."

Genetic Code Periodic Table

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2016

Collective Work of Chemists

From an article on LinkedIn:

Twelve elements were known from the Ancient Times, and were described by Romans and Greeks. The remaining 106 elements have been discovered by scientists of 15 different countries during the last 4 centuries. In addition, 19 elements of those 106 (18%) have been co-discovered by researchers of two countries.

Although some of them (like Bromine or Thallium) were isolated separately at the same time by chemists of different nationalities within the race to discover new elements in 18th-21st centuries, most of them have been obtained since then through collaborative research, like the recently discovered Ununpentium, Ununseptium and Ununoctium.

Another example is the isolation of Radium and Polonium by the Polish Maria Skłodowska-Curie and her French husband, Pierre Curie.

Thus, Periodic Table is the result of a collective and long-term work of hundreds of scientists.

It is noteworthy to see that Russia and United States have discovered mainly artificial elements.

Collective Work of Chemists

Collective Work of Chemists

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2016

Where Your Elements Came From Periodic Table

  • The hydrogen in your body, present in every molecule of water, came from the Big Bang. There are no other appreciable sources of hydrogen in the universe.
  • The carbon in your body was made by nuclear fusion in the interior of stars, as was the oxygen.
  • Much of the iron in your body was made during supernovas of stars that occurred long ago and far away.
  • The gold in your jewelry was likely made from neutron stars during collisions that may have been visible as short-duration gamma-ray bursts.
  • Elements like phosphorus and copper are present in our bodies in only small amounts but are essential to the functioning of all known life.

The featured periodic table, from Astronomy Picture of The Day (APOD) is color coded to indicate humanity's best guess as to the nuclear origin of all known elements. The sites of nuclear creation of some elements, such as copper, are not really well known and are continuing topics of observational and computational research.

Where Your Elements Came From

Thanks to Marcus Lynch for the tip!

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2016

Valentine Periodic Table

A Valentine Periodic Table by Claude Bayeh:

Valentine Periodic Table by Claude Bayeh

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1990

Circular Model of the Atom: Opposition in the Elements

The Circular Model of the Atom is a circular periodic table that shows atomic structure in addition to periodicity. Unlike any other periodic table or model, it demonstrates that the atomic structure has an inherent dipole magnet that create positve and negative fields and elemental qualities at the atomic level.

The Circular Model of the Atom was created by Helen A. Pawlowski in the 1980s, and published in her work, Visualization of the Atom.

Her brother, Paul A. Williams extended many of Helen's ideas with his examination of the standard model using Helen's Circular Atom Model. This website contains some of Helen's ideas and Paul's writings.

Circular Model of the Atom: Opposition in the Elements

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2015

Protein Complexes, Periodic Table of

The Periodic Table of Protein Complexes, developed by researchers in the UK and published in the in the journal Science (Dec 11, 2015), offers a new way of looking at the enormous variety of structures that proteins can build in nature. More importantly, it suggests which ones might be discovered next and how entirely novel structures could be engineered. Created by an interdisciplinary team led by researchers at the Wellcome Genome Campus and the University of Cambridge, the Table provides a valuable tool for research into evolution and protein engineering.

Read more on Kurzweil and Wild Types (ASBMB Today).

Protein Complexes

Protein Complexes

Thanks to Bob Bruner for the tip!

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2002

Tetrahedral Twist: Chemistry Puzzle and Teaching Device

A twisting three dimensional puzzle apparatus for the study of chemistry and its history and based upon the Zmaczynski equilateral triangular model of the periodic table of the chemical elements. Each face of the pyramid has a series of equilateral shaped portions bearing portions of the periodic table of elements. The different segments can be rotated around in order to scramble the puzzle. Such portions can be constructed using same or similar technology that was used to design the Meffert PYRAMINX PUZZLE that is similar to the RUBIK'S CUBE design.

From a US Patent.

Tetrahedral Twist: Chemistry Puzzle and Teaching Device

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pre 1900 formulations 1900 to 1949 formulations 1950 to 1999 formulations 2000 to 2009 formulations Spiral formulations 3 dimensional formulations
Data mapping periodic tables Miscellaneous periodic tables Books and reviews non-chemistry periodic tables All periodic tables

 

 


Periodic Table, What is it showing?
Binary Compounds

© Mark R. Leach 1999-


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