Relative atomic mass: [251]

English: Californium
French: Californium
Croatian: Kalifornij
German: Californium
Italian: Californio
Spanish: Californio

Atomic number: 98
Group numbers: 3
Period: 7
Standard state (20 oC): solid

Discovery: 1950 Stanley G. Thompson, Kenneth Street Jr., Albert Ghiorso, Glenn T. Seaborg (US)
Californium was discovered by Stanley G. Thompson, Kenneth Street Jr., and Albert Ghiorso (US) in 1950. Named after the State and University of California, USA. It is a synthetic radioactive metal and a powerful neutron emitter. Californium was made by bombarding curium with helium ions.
Electronic configuration: [Rn] 5f10 7s2
Formal oxidation number: +3
Atomic radius: 186 pm

Electronegativities: -
Thermal conductivity: - W/(m K)
Electrical resistivity (20 oC): - microOhm cm

Melting point: 900 oC
Boiling point: - oC

Heat of fusion: - kJ/mol
Heat of vaporization: - kJ/mol
Heat of atomization: 175 kJ/mol

97Bk <= 98Cf => 99Es

ASCII Periodic Table of the Elements
6 Jan. 2020
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