Periodic table of the elements
CuriumBerkeliumCalifornium
97
Bk
Berkelium
(247)
2
8
18
32
27
8
2
97
Bk
Berkelium
(247)
2
8
18
32
27
8
2
General
NameBerkelium
SymbolBk
Number97
Chemical seriesActinides
Group / Period0 / 7
Blockf-block
CAS registry number7440-40-6

Berkelium is a radioactive element

Physical properties
Statesolid
Density14.78 g/cm3
Melting point1259 K (986 °C, 1807 °F)
Boiling point
Critical point

Atomic properties
Atomic Weight(247) g/mol
Crystal structurehexagonal close-packed
Electronegativity1.30
Atomic radius
Atomic radius (calculated)
Electron configuration[Rn] 5f9 7s2
Electrons per shell2, 8, 18, 32, 27, 8, 2
Number of protons97
Number of neutrons150

Other languages
SpanishBerkelio
PortugueseBerquélio
FrenchBerkélium
GermanBerkelium
ItalianBerkelio
RussianБерклий
PolishBerkel
Chinese
Arabicبركليوم
TurkishBerkelyum
DutchBerkelium


Periodic table of the elements
CuriumBerkeliumCalifornium