Lutetium-177 (Lu-177)

Identity

Protons

71

Neutrons

106

Mass number

177

Mass

176.9 ± 1.3 u

Mass excess

-52.384 MeV

Spin

7/2+*

Stability

Half-life: 6.64 days

Natural occurrence

Not found in nature

Decays to

• beta minus → Hf-177