Berkelium

Symbol BkAtomic number 97...
Atomic mass
247
 Thermal conductivity
0.1
Atomic radius
...
 Covalent radius
...
Density
...
 Atomic volume
...
Melting point
...
 Oxidation states
4,3
Boiling point
...
 Stable isotopes
0
Heat of vapor.
...
 Electronegativity
1.3
Heat of fusion
...
 First ionization
6.23
Specific heat
...
 Electrical conduct.
...
Electron configuration

General descriptionNuclear data
 Index

Periodic Table

Chemistry concepts
 
HyperPhysicsR Nave
 Go Back





Berkelium

Berkelium, a trans-uranic element, was first discovered in1949 by Glenn T. Seaborg, Stanley G. Thompson and Albert Ghiorso at the University of California laboratories in Berkeley, California.

An isotope of mass number 243 with a half-life of 4.6 hours was produced by bombarding americium-241 with alpha particles (helium nuclei) accelerated in a cyclotron. Ten isotopes in all were produced, the most stable being Bk-247.

Atomic dataNuclear data
 Index

Periodic Table

Chemistry concepts

Reference
Pauling
Ch. 29
 
HyperPhysicsR Nave
 Go Back







Berkelium Nuclear Data

Z
A
Atomic
Mass (u)
Nuclear
Mass(GeV/c2
Binding
Energy(MeV)
Spin
Natural
Abund.
Half-life
Decay
Q
MeV
97
247
247.070300
230.0968
1852.3
3/2
...
1.4ky
a
5.89
97
248
248.073107
231.0309
1857.7
1
...
23.7h
b,EC
0.71,0.86
Atomic data
Index

Periodic Table

Chemistry concepts

Reference
Rohlf
 
HyperPhysicsR Nave
 Go Back