americium

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Symbol:

Am

Atomic Number:

95

Relative Atomic Mass:

243.0614 g mol^-1

Electron Configuration:

[Rn]5f⁷7s²

Oxidation States:

VI, V, IV, III

Ionic Radius:

85pm (for +4 oxidation state)

98pm (for +3 oxidation state)

Melting Point:

994°C

Density:

13.67 g cm^-3 (at 20°C)

First Ionisation Energy:

6.0 eV

Reduction Potential:

-2.07V

for Am³⁺ + 3e^- a Am_(s)

Electronegativity (Allred and Rochow):

1.2

Number of Natural Isotopes:

0