Er

Erbium-171m

Protons (Z)

68

Neutrons (N)

103

Mass number

171

Half-Life

210.0 ns

Abundance

---

Mass

170.938 u

Mass Excess

-57,519.2 keV

Spin

1/2-

Discovered

1969

Binding energy per nucleon

8,097 keV

Neutron separation energy

5,483 keV

Proton separation energy

8,568 keV

Decay Mode

γErbium-171100%

Decay chain

Erbium-171Z 68 · N 103210.0 ns
γ100%
β⁻100%
β⁻100%