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|
Mendeleev's Table In English
A table, from Wikipedia, showing the periodicity of the properties of many chemical elements, from the first English edition of Dmitrii Mendeleev's Principles of Chemistry (1891, translated from the Russian fifth edition).
It is worth noting that this 1981 formulation shows the presence of gallium and germanium that were not his original table.
|Periodic Table, What is it showing?||
© Mark R. Leach 1999-
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