Er

Erbium-173

Protons (Z)

68

Neutrons (N)

105

Mass number

173

Half-Life

1.43 m

Abundance

---

Mass

172.942 u

Mass Excess

-53,650.0 keV

Spin

(7/2-)

Discovered

1972

Binding energy per nucleon

8,074 keV

Neutron separation energy

5,238 keV

Proton separation energy

9,459 keV

Decay Mode

β⁻Thulium-173100%

Decay chain

Erbium-173Z 68 · N 1051.43 m
β⁻100%
β⁻100%