Sm

Samarium-155m

Protons (Z)

62

Neutrons (N)

93

Mass number

155

Half-Life

2.8 µs

Abundance

---

Mass

154.925 u

Mass Excess

-70,174.7 keV

Spin

5/2+

Discovered

2010

Binding energy per nucleon

8,211 keV

Neutron separation energy

5,790 keV

Proton separation energy

9,197 keV

Decay Mode

γSamarium-155100%

Decay chain

Samarium-155Z 62 · N 932.8 µs
γ100%
β⁻100%
β⁻100%