95Am

Americium

Actinide

Americium (Am) is element 95, an actinide, in period 7 of the periodic table. Its atomic mass is usually given as 243, it melts at 1176 °C and boils at 2011 °C. Discovered by Glenn T. Seaborg, 1944.

Atomic Number95

SymbolAm

NameAmericium

Atomic Weight243 u

CategoryActinide

Period7

Melting Point1176 °C

Boiling Point2011 °C

Density13.69 g/cm³

Electron Config[Rn] 5f7 7s2

Discovered ByGlenn T. Seaborg, 1944

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