Periodic table

Thulium-165 (Tm-165)

Identity

Protons
69
Neutrons
96
Mass number
165
Mass
164.9 ± 1.8 u
Mass excess
-62.930 MeV
Spin
1/2+*

Stability

Half-life: 1.25 days

Natural occurrence

Not found in nature

Decays to

All isotopes of thulium