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|
Dutch Periodic Table
A Dutch periodic table formulation, Periodiek Systeem van de Elementen, probably from the mid-nineteen sixties: Element 103 Lr (shown as Lw), discovered 1961, is listed but Rf 104, discovered in 1964 is not shown.
Note how this formulation shows the noble gases, He-Rn, both on the left-side and the right-side.
This historic and original periodic table is listed for sale (Nov. 2015) on the Not On The Hight Street website.
|Periodic Table, What is it showing?||
© Mark R. Leach 1999-
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