Er
Erbium-162
Protons (Z)
68
Neutrons (N)
94
Mass number
162
Half-Life
Stable
Abundance
0.139%
Mass
161.929 u
Mass Excess
-66,334.2 keV
Spin
0+
Discovered
1938
Binding energy per nucleon
8,152 keV
Neutron separation energy
9,205 keV
Proton separation energy
6,427 keV
Decay Mode
- α→Dysprosium-158
- β⁺