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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:  2019 PT id = 1029, Type = data misc

Heritage Periodic Table Display

By Engineered Labs, the Heritage Periodic Table Display.

"Introducing the world's first and only miniature Periodic Table with the actual elements in it.

"Over the last year, we have successfully collected each and every stable element. After considerable R&D, we have finally developed a method of embedding each element in acrylic and we have to say, the result is awesome!

"The Heritage Periodic Table pretty much speaks for itself. The collection looks great on a desk, in your hands, and anywhere else it can be displayed."



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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –

Queries, Suggestions, Bugs, Errors, Typos...

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