The INTERNET Database of Periodic Tables
|2019 has been designated the International Year of the Periodic Table as it is the 150th Anniversary of the formulation of Mendeleev's Tabelle I|
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:
|Periodic Table, What is it showing?||
© Mark R. Leach 1999-
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