fermium

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Symbol:

Fm

Atomic Number:

100

Relative Atomic Mass:

257.0951 g mol^-1

Electron Configuration:

[Rn]5f¹²7s²

Oxidation States:

III

Reduction Potential:

-1.95V

for Fm³⁺ +3e^- a Fm_(s)

Electronegativity (Allred and Rochow):

1.2

Number of Natural Isotopes:

0