Eu
Europium-157
Protons (Z)
63
Neutrons (N)
94
Mass number
157
Half-Life
15.18 h
Abundance
---
Mass
156.925 u
Mass Excess
-69,459.0 keV
Spin
5/2+
Discovered
1951
Binding energy per nucleon
8,200 keV
Neutron separation energy
7,447 keV
Proton separation energy
7,387 keV
Decay Mode
- β⁻→Gadolinium-157100%
Decay chain
- EuEuropium-157Z 63 · N 9415.18 h
- β⁻100%