Pm
Promethium-152n
Protons (Z)
61
Neutrons (N)
91
Mass number
152
Half-Life
13.8 m
Abundance
---
Mass
152.0 u
Mass Excess
0.0 keV
Spin
(8)
Discovered
1971
Binding energy per nucleon
7,757 keV
Neutron separation energy
-65,315 keV
Proton separation energy
-63,654 keV
Decay Mode
Decay chain
- PmPromethium-152Z 61 · N 9113.8 m
- β⁻100%