Sb
Antimony-121m
Protons (Z)
51
Neutrons (N)
70
Mass number
121
Half-Life
179.0 µs
Abundance
---
Mass
120.907 u
Mass Excess
-86,848.0 keV
Spin
(25/2+)
Discovered
2008
Binding energy per nucleon
8,459 keV
Neutron separation energy
6,502 keV
Proton separation energy
3,039 keV
Decay Mode
- γ→Antimony-121100%
Decay chain
- SbAntimony-121Z 51 · N 70179.0 µs
- γ100%