Promethium-145 (Pm-145)

Identity

Protons

61

Neutrons

84

Mass number

145

Mass

144.9 ± 3.0 u

Mass excess

-81.268 MeV

Spin

5/2+

Stability

Half-life: 17.7 years

Natural occurrence

Not found in nature

Decays to

• electron capture 100.0 % → Nd-145
• alpha 2.8e-7 % → Pr-141

Produced by

• Sm-145