Er

Erbium-172m

Protons (Z)

68

Neutrons (N)

104

Mass number

172

Half-Life

579.0 ns

Abundance

---

Mass

171.941 u

Mass Excess

-54,982.0 keV

Spin

(6+)

Discovered

2006

Binding energy per nucleon

8,082 keV

Neutron separation energy

5,336 keV

Proton separation energy

7,751 keV

Decay Mode

γErbium-172100%

Decay chain

Erbium-172Z 68 · N 104579.0 ns
γ100%
β⁻100%
β⁻100%