Sm
Samarium-128
Protons (Z)
62
Neutrons (N)
66
Mass number
128
Half-Life
500.0 ms
Abundance
---
Mass
127.958 u
Mass Excess
-39,150.0 keV
Spin
0+
Discovered
---
Binding energy per nucleon
7,998 keV
Neutron separation energy
---
Proton separation energy
1,129 keV
Decay Mode
Decay chain
- SmSamarium-128Z 62 · N 66500.0 ms
- β⁺
- β⁺100%
- β⁺
- β⁺100%
- β⁺100%
- β⁺100%
- EC100%
- β⁺100%