Eu
Europium-131
Protons (Z)
63
Neutrons (N)
68
Mass number
131
Half-Life
17.8 ms
Abundance
---
Mass
130.958 u
Mass Excess
-39,460.0 keV
Spin
3/2+
Discovered
1998
Binding energy per nucleon
7,996 keV
Neutron separation energy
14,021 keV
Proton separation energy
-951 keV
Decay Mode
Decay chain
- EuEuropium-131Z 63 · N 6817.8 ms
- p89%
- β⁺
- β⁺100%
- β⁺100%
- β⁺100%
- β⁺100%
- β⁺100%