Berkelium

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Symbol:

Bk

Atomic Number:

97

Relative Atomic Mass:

247.0703 g mol^-1

Electron Configuration:

[Rn]5f⁹7s²

Oxidation States:

IV, III

Ionic Radius:

83pm (for +4 oxidation state)

96pm (for +3 oxidation state)

Melting Point:

986°C

Density:

13.25 g cm^-3 (at 20°C)

Reduction Potential:

-1.97V

for Bk³⁺ +3e^- a Bk_(s)

Electronegativity (Allred and Rochow):

1.2

Number of Natural Isotopes:

0