I
Iodine-128
Protons (Z)
53
Neutrons (N)
75
Mass number
128
Half-Life
24.99 m
Abundance
---
Mass
127.906 u
Mass Excess
-87,738.0 keV
Spin
1+
Discovered
1934
Binding energy per nucleon
8,433 keV
Neutron separation energy
6,826 keV
Proton separation energy
6,746 keV
Decay Mode
Decay chain
- IIodine-128Z 53 · N 7524.99 m
- β⁻93.1%