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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:  1942 PT id = 565, Type = formulation data

Paneth's Table

Published by Paneth in 1942 in an article in Nature in which he suggests that newly discovered elements such as Z = 43 should be given names by their discoverers. The other highlighted elements (below) had also not yet been named.

Element 43 had been discovered 9 years earlier but had not been given an official name because there was reluctance to consider synthetic elements on the same footing as naturally occurring ones. This changed as a result of Paneth's article.

For more information see Eric Scerri's, A Tale of Seven Elements, OUP, 2013.

Thanks to Eric Scerri for the tip!
See the website EricScerri.com and Eric's Twitter Feed.

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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –

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