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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 1300 Period Tables in the database: 

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Year:  1939 PT id = 943, Type = formulation

XBL 769-10601, Periodic Table Before World War II

An internal document of the Lawrence Berkeley Laboratory XBL 769-10601 shows a late 1930s (pre World War II) periodic table.

Note that this formulation erroneously predicts positions for transuranium elements:

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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –


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