Berkelium

14.78
247
[Rn] 5f97s2
247Bk, 249Bk
7
f
97
2, 8, 18, 32, 27, 8, 2
598.007
Bk
14.78
986°C, 1807°F, 1259 K
Unknown
Stanley Thompson, Albert Ghiorso, and Glenn Seaborg
1949
7440-40-6
22409
More Information
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Atomic Data

Atomic Radiues, Non-bonded (A): 2.44
Electron Affinity (kJ mol-1): Unknown
Covalent Radiues (A): 1.68
Electronegativity (Pauling Scale): Unknown
Ionisation Energies (kJ mol-1) 1st 2nd 3rd 4th 5th 6th 7th 8th
598.007 - - - - - - -

Oxidation States and Isotopes

Common oxidation states 4, 3
Isotope Atomic Mass Natural Abundance Half Life Mode of Decay
247Bk 247.070 - 1.43 x 103 y α
249Bk 249.075 - 320 d β
α
1.8 x 109 y sf

Pressure and Temperature Data

Specific Heat Capacity: Unknown
Shear Modulus: Unknown
Young Modulus: Unknown
Bulk Modulus: Unknown
Pressure 400k Pressure 600k Pressure 800k Pressure 1000k Pressure 1200k Pressure 1400k Pressure 1600k Pressure 1800k Pressure 2000k Pressure 2200k Pressure 2400k
- - - - - - - - - - Unknown