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  Web Book Home Page | Chemogenesis Main Index Foreword:  Chemogenesis & Chemical Education Part I   Atoms | Elements | Periodic Tables 1.1  Introduction to Chemogenesis 1.2  Nucleosynthesis of The Elements 1.3  The Segrè Chart 1.4  Quantum Numbers to Periodic Tables 1.5  The Periodic Table: What Is It Showing? 1.6  The INTERNET Database of Periodic Tables 1.7  Periodicity Part II   Structure | Bonding | Material Type 2.1  Mono-Bond Typed Binary Compounds 2.2  Binary Compound Synthlet 2.3  Electronegativity 2.4  van Arkel-Ketelaar Triangles of Bonding 2.5  Tetrahedra of Structure, Bonding & Material Type 2.6  Structure, Bonding & Material Synthlet 2.7  The Classification of Matter: Chemical Stuff Part III   Interactions | Reactions | Mechanisms 3.1  The Chemogenesis Analysis: An Overview 3.2  Lewis and Brønsted Models of Acidity 3.3  The Hard Soft [Lewis] Acid Base Principle 3.4  Main Group Elemental Hydrides 3.5  Five Hydrogen Probe Experiments 3.6  Congeneric Dots, Series & Planars 3.7  Quantifying Congeneric Behaviour 3.8  Ligand Replacement Congeneric Series 3.9  Congeneric Array Interactions 3.10  Emergence of Organic Chemistry 3.11  Congeneric Array Database 3.12  The Five Reaction Chemistries 3.13  Lewis Acids & Lewis Bases: A New Analysis 3.14  The Lewis Acid/Base Interaction Matrix 3.15  Patterns in Reaction Chemistry Poster 3.16  Lewis Acid/Base Interaction Matrix Database 3.17  Nucleophiles, Bases & The Fluoride Ion 3.18  Redox Chemistry 3.19  Redox Chemistry Synthlet 3.20  Radical Chemistry 3.21  Diradical Chemistry 3.22  Photochemistry 3.23  Species/Species Interactions 3.24  The Simplest Mechanistic Step: STAD 3.25  Unit & Compound Mechanistic Steps 3.26  The Mechanism Matrix 3.27  Addition To A Double Bond Synthlet 3.28  Pericyclic Reaction Chemistry Part IV   Chemical Theory 4.1  Why Do Chemical Reactions Occur? 4.2a  Thermochemistry: List Reactions Synthlet 4.2b  Thermochemistry: Play With Reaction Synthlet 4.2c  Thermochemistry: Bulid A Reaction Synthlet 4.3  Timeline of Structural Theory 4.4  Modern Lewis Theory 4.5  Valence Shell Electron Pair Repulsion: VSEPR 4.6  Diatomic Species by Molecular Orbital Theory 4.7  Polyatomic Species: Molecular Orbitals 4.8  Organic π-Systems 4.9  Functional Group Database Part V   Complexity & Emergence 5.1  Chemistry & Complexity: Systems 5.2  Linear Chemistry Systems 5.3  Chemical Systems Prone to Complexity Part VI   Extras 6.1  Chemogenesis Videos 6.2  Chemical Thesaurus Reaction Chemistry Database 6.3  Chemogenesis Paper 6.4  Electronegativity as a Basic Elemental Property 6.5  What is Chemistry? (Workshop) 6.6  Literature References & Further Reading

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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: 

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Toma's Periodic Tables

Henrique E. Toma writes:

"I will be delighted if I could have a chance to contribute for the fantastic moment expressed by 2019 IYPT.

"I am senior Professor of Chemistry at the University of São Paulo, and great Periodic Table enthusiast since the beginning of my career about 50 years ago. This interest actually came from my supervisor and mentor, Professor Henry Taube (Nobel Prize, 1983), who taught me the beauty of the elements."

"As an inorganic chemist, I have been collecting the elements and minerals for a long time, and I built up the Periodic Table with the real elements shown below. It is one of the attractions of the campus, and has been reported in many publications¹. It was visited by colleagues from IUPAC, including the President. I wouldn't be surprised if it inspired IUPAC the similar Table exposed in Paris, this year. The difference is that our table is that it also places the typical minerals together with the elements, and I believe that this is very important aspect for teaching and discussing the history behind them:

"Next, is my personal version of the IUPAC Periodic Table, shown in Figure 2, with the isotopes distributed in a column right to the element symbol. This Table is very practical, and particularly useful when you are dealing with mass spectrometry or isotopes. It is in my book of Elements².

"Another is the Periodic Table of the Elements for Life, with the essential elements and abundance expressed by colors, including those used in medicine. This Table will be changing with the progress of Bioinorganic Chemistry, and is in my book of Bioinorganic Chemistry³.

"Finally, I have adapted the periodic table of elemental sustainability, using the colors to call attention for this issue. In this form, it is can be more easily understood by the public. Elemental Sustainability is a very important issue, as discussed in Green Chemistry Journal⁴.

References:

1. Toma, H. E. IYPT 2019 International Year of the Periodic Table of the Chemical Elements. Quimica Nova 42, 468–472 (2019).
2. Toma, H. Estrutura atômica, ligações e estereoquímica. (Edgard Blucher, 2018).
3. Toma, H. Química bioinorganica e ambiental. (Edgard Blucher, 2015).
4. Toma, H. Green Processing of Strategic Elements Based on Magnetic Nanohydrometallurgy. Green Chem. 29, 948–959 (2015).

© Mark R. Leach Ph.D. 1999 –

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