Sb
Antimony-129
Protons (Z)
51
Neutrons (N)
78
Mass number
129
Half-Life
4.37 h
Abundance
---
Mass
128.909 u
Mass Excess
-84,629.0 keV
Spin
7/2+
Discovered
1939
Binding energy per nucleon
8,418 keV
Neutron separation energy
8,070 keV
Proton separation energy
8,557 keV
Decay Mode
- β⁻→Tellurium-129100%
Decay chain
- SbAntimony-129Z 51 · N 784.37 h
- β⁻100%
- β⁻100%
- β⁻100%