Eu
Europium-154m
Protons (Z)
63
Neutrons (N)
91
Mass number
154
Half-Life
2.2 µs
Abundance
---
Mass
153.923 u
Mass Excess
-71,670.2 keV
Spin
2+
Discovered
1964
Binding energy per nucleon
8,217 keV
Neutron separation energy
6,374 keV
Proton separation energy
6,399 keV
Decay Mode
- γ→Europium-154100%
Decay chain
- EuEuropium-154Z 63 · N 912.2 µs
- γ100%
- β⁻99.982%