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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:  1995 PT id = 241, Type = formulation spiral

Melinda Green's Periodic Fractal of The Elements

Melinda Green writes: "This is an alternative version of the standard chemistry Periodic Table of the Elements that I developed. In high school I learned the basic concept of element families and how they were arranged into columns to show the periodicity in their electrical properties. I was fascinated with the idea, but immediately wondered whether there might be better ways of graphically showing those relationships." read lots more here

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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –

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