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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  Paper: Chemogenesis 6.4  Paper: Electronegativity as a Basic Elemental Property (FoC) 6.5  Workshop: What is Chemistry? 6.6  Paper: Scientific laws, Dalton’s postulates, chemical reactions
          and Wolfram’s NKS (FoC) 6.7  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. The database holds information on periodic tables, the discovery of the elements, the elucidation of atomic weights and the discovery of atomic structure (and much, much more).

Periodic Tables from the year 1962 :

Scott & Kendal Periodic Table

René Vernon shows an extract from Scott E.C. & Kendal F.A., The Nature of Atoms & Molecules: A General Chemistry. Harper & Row, New York, 1962 pp 385, categorising the metals.

Rather than providing a holistic treatment of the nonmetals, the authors take a group-by-group approach.

Items of interest: Al over Sc; the split between groups 3 and 3; and the inclusion of Pt with the soft metals.

On the right is my add-on for the nonmetals, plus extracts from the literature speaking to the analogies between the four metal and four nonmetal categories.

Click to enlarge

Rinck & Feschotte's Tableau Périodique Proposé

Rinck, E and Feschotte, P. Periodic Classification and The Proust Law. Bull. soc. chim. France, vol. Vol: No. 4, Apr. 1962.

Abstract (Google Translate from French):

Advances in our understanding of the solid state have led to the identification of numerous crystalline phases whose composition is not defined by Proust's law. The rigorous validity of this law, however, served as the starting point for atomic theory: it continues to be used in the measurement of atomic weights and remains valid for the vast field of organic chemistry. The search for the limits of Proust's law's validity leads to certain peculiarities of the metallic state that are closely linked to the periodic table of elements.

A new arrangement in the periodic table, allowing for the first time the integration of rare earth elements and giving hydrogen a very special place, accounts for a distinction between true metals and earth metals. This distinction is necessary because Proust's law, valid for combinations between metalloids and earth metals, is no longer always followed when these same metalloids combine with true metals. Finally, this law loses all meaning in alloys of true metals. The exceptions to this rule are explained by the specialization of chemical properties that occurs when moving from short to long half-lives. Hydrogen and the metals of short half-lives are considered undifferentiated elements, potentially possessing contradictory chemical and even physical properties. Using a perspective borrowed from embryology thus allows for a better understanding of the relationships between these properties.

René Vernon, who provided this PT, writes that "R&F's table shows two extra elements marked as alpha and beta.

Thanks to René for the tip!

© Mark R. Leach Ph.D. 1999 –

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