Lutetium-173 (Lu-173)

Identity

Protons

71

Neutrons

102

Mass number

173

Mass

172.9 ± 1.7 u

Mass excess

-56.881 MeV

Spin

7/2+*

Stability

Half-life: 1.37 years

Natural occurrence

Not found in nature

Decays to

• electron capture → Yb-173