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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 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).

   Use the drop menus or search box (below) to Select or Search the 1400 entries in the database: 

  Or, Search by Text String:       
Year:  2012 PT id = 538, Type = formulation spiral

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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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –

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This free, open access web book is an ongoing project and your input is appreciated.