Sb
Antimony-128m
Protons (Z)
51
Neutrons (N)
77
Mass number
128
Half-Life
10.41 m
Abundance
---
Mass
127.909 u
Mass Excess
-84,620.0 keV
Spin
5+
Discovered
1955
Binding energy per nucleon
8,421 keV
Neutron separation energy
5,993 keV
Proton separation energy
8,439 keV
Decay Mode
Decay chain
- SbAntimony-128Z 51 · N 7710.41 m
- β⁻96.4%