97Bk

Berkelium

Actinide

Berkelium (Bk) is element 97, an actinide, in period 7 of the periodic table. Its atomic mass is usually given as 247, it melts at 1050 °C and boils at 2627 °C. Discovered by Lawrence Berkeley Lab, 1949.

Atomic Number97

SymbolBk

NameBerkelium

Atomic Weight247 u

CategoryActinide

Period7

Melting Point1050 °C

Boiling Point2627 °C

Density14.79 g/cm³

Electron Config[Rn] 5f9 7s2

Discovered ByLawrence Berkeley Lab, 1949

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