Lutetium-169 (Lu-169)

Identity

Protons

71

Neutrons

98

Mass number

169

Mass

168.9 ± 3.2 u

Mass excess

-58.083 MeV

Spin

7/2+*

Stability

Half-life: 1.42 days

Natural occurrence

Not found in nature

Decays to

• positron emission → Yb-169