Periodic table

Samarium-147 (Sm-147)

Identity

Protons
62
Neutrons
85
Mass number
147
Mass
146.9 ± 1.4 u
Mass excess
-79.266 MeV
Spin
7/2-*

Stability

Half-life: 1.07 × 10¹¹ years

Natural occurrence

15.00 % of samarium

Decays to

Produced by

All isotopes of samarium