I

Iodine-131m

Protons (Z)

53

Neutrons (N)

78

Mass number

131

Half-Life

24.0 µs

Abundance

---

Mass

130.908 u

Mass Excess

-85,524.3 keV

Spin

19/2-

Discovered

2009

Binding energy per nucleon

8,408 keV

Neutron separation energy

6,660 keV

Proton separation energy

5,460 keV

Decay Mode

γIodine-131100%

Decay chain

Iodine-131Z 53 · N 7824.0 µs
γ100%
β⁻100%