Periodic table of the elements
BerkeliumCaliforniumEinsteinium
98
Cf
Californium
(251)
2
8
18
32
28
8
2
98
Cf
Californium
(251)
2
8
18
32
28
8
2
General
NameCalifornium
SymbolCf
Number98
Chemical seriesActinides
Group / Period0 / 7
Blockf-block
CAS registry number7440-71-3

Californium is a radioactive element

Physical properties
Statesolid
Density15.1 g/cm3
Melting point1173 K (900 °C, 1652 °F)
Boiling point
Critical point

Atomic properties
Atomic Weight(251) g/mol
Crystal structure
Electronegativity1.30
Atomic radius
Atomic radius (calculated)
Electron configuration[Rn] 5f10 7s2
Electrons per shell2, 8, 18, 32, 28, 8, 2
Number of protons98
Number of neutrons153

Other languages
SpanishCalifornio
PortugueseCalifórnio
FrenchCalifornium
GermanCalifornium
ItalianCalifornio
RussianКалифорний
PolishKaliforn
Chinese
Arabicكاليفورنيوم
TurkishKaliforniyum
DutchCalifornium


Periodic table of the elements
BerkeliumCaliforniumEinsteinium