Bismuth

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Symbol:

Bi

Atomic Number:

83

Relative Atomic Mass:

208.98038 g mol^-1

Natural Abundance in Lithosphere, hydrosphere and atmosphere:

2 x 10^-5% (mass fraction)

Electron Configuration:

[Xe]4f¹⁴5d¹⁰6s²6p³

Oxidation States:

V, III

Atomic Radius:

154.5pm

Covalent Radius:

146pm

Ionic Radius:

67pm (for +5 oxidation state)

117pm (for +3 oxidation state)

Melting Point:

271.3°C

Density:

9.80 g cm^-3 (at 20°C)

First Ionisation Energy:

7.289 eV

Reduction Potential:

0.23V

for Bi³⁺ +3e^- a Bi_(s)

Electronegativity (Allred and Rochow):

1.7

Number of Natural Isotopes:

1

Mass Number of the Most Abundant Isotopes:

209 g mol^-1 a 100% abundance