Pm
Promethium-127
Protons (Z)
61
Neutrons (N)
66
Mass number
127
Half-Life
1.0 s
Abundance
---
Mass
126.951 u
Mass Excess
-45,310.0 keV
Spin
(3/2+)
Discovered
---
Binding energy per nucleon
8,052 keV
Neutron separation energy
13,631 keV
Proton separation energy
-781 keV
Decay Mode
Decay chain
- PmPromethium-127Z 61 · N 661.0 s
- β⁺
- β⁺100%
- β⁺100%
- β⁺100%
- β⁺100%
- β⁺100%
- β⁺100%
- EC100%