Tm
Thulium-155
Protons (Z)
69
Neutrons (N)
86
Mass number
155
Half-Life
21.6 s
Abundance
---
Mass
154.939 u
Mass Excess
-56,626.0 keV
Spin
11/2-
Discovered
1971
Binding energy per nucleon
8,088 keV
Neutron separation energy
10,270 keV
Proton separation energy
1,310 keV
Decay Mode
Decay chain
- TmThulium-155Z 69 · N 8621.6 s
- β⁺99.17%
- β⁺99.978%
- β⁺100%
- β⁺100%
- EC100%