Er

Erbium-159

Protons (Z)

68

Neutrons (N)

91

Mass number

159

Half-Life

36.0 m

Abundance

---

Mass

158.931 u

Mass Excess

-64,561.0 keV

Spin

3/2-

Discovered

1962

Binding energy per nucleon

8,143 keV

Neutron separation energy

7,328 keV

Proton separation energy

5,663 keV

Decay Mode

β⁺Holmium-159100%

Decay chain

Erbium-159Z 68 · N 9136.0 m
β⁺100%
β⁺100%
EC100%