Er
Erbium-149n
Protons (Z)
68
Neutrons (N)
81
Mass number
149
Half-Life
610.0 ns
Abundance
---
Mass
148.945 u
Mass Excess
-51,131.0 keV
Spin
(19/2+)
Discovered
1987
Binding energy per nucleon
8,057 keV
Neutron separation energy
7,723 keV
Proton separation energy
430 keV
Decay Mode
- γ→Erbium-149100%
Decay chain
- ErErbium-149Z 68 · N 81610.0 ns
- γ100%
- β⁺93%
- β⁺100%
- β⁺100%
- β⁺83.3%
- β⁺~100%
- EC100%