Samarium-146 (Sm-146)

Identity

Protons

62

Neutrons

84

Mass number

146

Mass

145.9 ± 3.3 u

Mass excess

-80.996 MeV

Spin

0+

Stability

Half-life: 6.80 × 10⁷ years

Natural occurrence

Not found in nature

Decays to

• alpha → Nd-142

Produced by

• Pm-146
• Eu-146
• Gd-150