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Californium  SEE PERIODIC TABLE
see article  SEE FULL ARTICLE


Atomic Number98

Atomic SymbolCf

Atomic Weight[251 amu]

GroupRare Earth (Actinide Series)

FormSolid

Density @ STP15.1 g/cm3

Melting Point900 °C (1652 °F, 1173.15 °K)

First Ionization Potential6.30 eV

Ground State Electron Configuration5f10 6s2 6p6 6f2

Oxidation State(s)+3

Selected Radioisotopes252Cf

Crystal StructureHexagonal

Discovered byThompson; Street; Ghioroso; Seaborg, 1950

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