I

Iodine-123

Protons (Z)

53

Neutrons (N)

70

Mass number

123

Half-Life

13.22 h

Abundance

---

Mass

122.906 u

Mass Excess

-87,943.0 keV

Spin

5/2+

Discovered

1949

Binding energy per nucleon

8,449 keV

Neutron separation energy

9,935 keV

Proton separation energy

4,919 keV

Decay Mode

β⁺Tellurium-123100%

Decay chain

Iodine-123Z 53 · N 7013.22 h
β⁺100%