Er
Erbium-156
Protons (Z)
68
Neutrons (N)
88
Mass number
156
Half-Life
19.5 m
Abundance
---
Mass
155.931 u
Mass Excess
-64,212.0 keV
Spin
0+
Discovered
1967
Binding energy per nucleon
8,142 keV
Neutron separation energy
10,074 keV
Proton separation energy
5,461 keV
Decay Mode
Decay chain
- ErErbium-156Z 68 · N 8819.5 m
- β⁺~100%
- β⁺100%