Sm

Samarium-142m

Protons (Z)

62

Neutrons (N)

80

Mass number

142

Half-Life

170.0 ns

Abundance

---

Mass

141.918 u

Mass Excess

-76,609.8 keV

Spin

7-

Discovered

1975

Binding energy per nucleon

8,269 keV

Neutron separation energy

8,747 keV

Proton separation energy

3,376 keV

Decay Mode

γSamarium-142100%

Decay chain

Samarium-142Z 62 · N 80170.0 ns
γ100%
β⁺100%
β⁺100%