Sm
Samarium-142
Protons (Z)
62
Neutrons (N)
80
Mass number
142
Half-Life
1.21 h
Abundance
---
Mass
141.915 u
Mass Excess
-78,981.9 keV
Spin
0+
Discovered
1959
Binding energy per nucleon
8,286 keV
Neutron separation energy
11,119 keV
Proton separation energy
5,748 keV
Decay Mode
- β⁺→Promethium-142100%
- β⁺<5%
Decay chain
- SmSamarium-142Z 62 · N 801.21 h
- β⁺100%
- β⁺100%