Atomic number:97

Group numbers:3

Period:7

Electronic configuration:[Rn] 5f⁹ 7s²

Formal oxidation number:+3 +4

Electronegativities:-

Atomic radius / pm:170

Relative atomic mass:[247]

 

Berkelium was discovered by Stanley G. Thompson, Albert Ghiorso, and Glenn T. Seaborg (US) in 1949. Named after Berkeley, a city in California, home of the University of California, USA. It is synthetic radioactive metal. Berkelium was made by bombarding americium with alpha particles.

Density / g dm^-3:14790 (calc.)

Molar volume / cm³mol^-1:16.70 (calc.)

Electrical resistivity / μΩcm:- (20 °C)

Thermal conductivity / W m^-1K^-1:-

Melting point / °C:1050

Boiling point / °C:-

Heat of fusion / kJ mol^-1:-

Heat of vaporization / kJ mol^-1:-

Heat of atomization / kJ mol^-1:291

1st ionization energy / kJ mol^-1:601.11

2nd ionization energy / kJ mol^-1:-

3rd ionization energy / kJ mol^-1:-

in the atmosphere / ppm:-

in the Earth's crust / ppm:-

in the oceans / ppm:-