Symbol
Bk
Atomic Number
97
Atomic Mass
247
Protons
97
Neutrons
150
Electrons
97
Type
Actinide
Isotopes
Berkelium-247
Discovery Year
1949
Discovered By
Glenn T. Seaborg, Albert Ghiorso, and Emilio Segrè
Group
3
Period
7
Boiling Point
1000°C
Melting Point
986°C
Electron Configuration
[Rn] 7s² 5f⁷
Density (g/cm³)
14.78
Crystal Structure
Cubic
Magnetism
Paramagnetic
Abundance in Earth's Crust
Trace
Phase at Room Temperature
Solid