Tm
Thulium-161m
Protons (Z)
69
Neutrons (N)
92
Mass number
161
Half-Life
5.0 m
Abundance
---
Mass
160.934 u
Mass Excess
-61,891.0 keV
Spin
(1/2+)
Discovered
1981
Binding energy per nucleon
8,120 keV
Neutron separation energy
9,662 keV
Proton separation energy
3,116 keV
Decay Mode
Decay chain
- TmThulium-161Z 69 · N 925.0 m
- β⁺
- β⁺100%
- EC100%