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|
Discovery of Americium
Americium, atomic number 95, has a mass of 243 au.
Synthetic radioactive element. It is used in smoke detectors, and so – surprisingly – is present most houses and buildings.
Americium was first observed in 1944 by G. T. Seaborg, R. A. James, O. Morgan and A. Ghiorso.
|Periodic Table, What is it showing?||
© Mark R. Leach 1999-
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