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What is the Periodic Table Showing? Periodicity

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 hold information on periodic tables, the discovery of the elements and elucidation of atomic weights (and more).

Use the drop menus or search box (below) to search & select from the more than 1350 Period Tables in the database: 

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Year:  2006 PT id = 282, Type = formulation

Various Periodic Tables

As discussed on this page of the Chemogenesis webbook, the periodic table is ambiguous as to what it is showing.

Does the PT show the element as the abstract 'basic substance', or gas phase atoms or the material substance?

By Mark Leach

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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –


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