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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.

Use the drop menus below to search & select from the more than 1100 Period Tables in the database:

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2010

Pyykkö's Extended Elements

From an RSC new page: Pekka Pyykkö at the University of Helsinki has used a highly accurate computational model to predict electronic structures and therefore the periodic table positions of elements up to proton number 172 - far beyond the limit of elements that scientists can currently synthesise.

From the paper, A suggested periodic table up to Z = 172, based on Dirac-Fock calculations on atoms and ions:

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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –


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