Sm

Samarium-156m

Protons (Z)

62

Neutrons (N)

94

Mass number

156

Half-Life

185.0 ns

Abundance

---

Mass

155.927 u

Mass Excess

-67,963.0 keV

Spin

5-

Discovered

1974

Binding energy per nucleon

8,196 keV

Neutron separation energy

5,843 keV

Proton separation energy

8,312 keV

Decay Mode

γSamarium-156100%

Decay chain

Samarium-156Z 62 · N 94185.0 ns
γ100%
β⁻100%
β⁻100%