Fe

Iron-57

Protons (Z)

26

Neutrons (N)

31

Mass number

57

Half-Life

Stable

Abundance

2.119%

Mass

56.935 u

Mass Excess

-60,182.02 keV

Spin

1/2-

Discovered

1935

Binding energy per nucleon

8,770 keV

Neutron separation energy

7,646 keV

Proton separation energy

10,559 keV

Decay Mode

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