Eu
Europium-140n
Protons (Z)
63
Neutrons (N)
77
Mass number
140
Half-Life
299.8 ns
Abundance
---
Mass
139.929 u
Mass Excess
-66,320.0 keV
Spin
(8+)
Discovered
2002
Binding energy per nucleon
8,193 keV
Neutron separation energy
8,993 keV
Proton separation energy
1,229 keV
Decay Mode
- γ→Europium-140100%
Decay chain
- EuEuropium-140Z 63 · N 77299.8 ns
- γ100%
- β⁺100%
- β⁺100%
- β⁺100%
- EC100%
- β⁺100%