Er

Erbium-161

Protons (Z)

68

Neutrons (N)

93

Mass number

161

Half-Life

3.21 h

Abundance

---

Mass

160.93 u

Mass Excess

-65,201.0 keV

Spin

3/2-

Discovered

1954

Binding energy per nucleon

8,146 keV

Neutron separation energy

7,208 keV

Proton separation energy

6,108 keV

Decay Mode

β⁺Holmium-161100%

Decay chain

Erbium-161Z 68 · N 933.21 h
β⁺100%
EC100%