I

Iodine-127

Protons (Z)

53

Neutrons (N)

74

Mass number

127

Half-Life

Stable

Abundance

100%

Mass

126.904 u

Mass Excess

-88,983.0 keV

Spin

5/2+

Discovered

1920

Binding energy per nucleon

8,445 keV

Neutron separation energy

9,144 keV

Proton separation energy

6,208 keV

Decay Mode

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