Sm

Samarium-144

Protons (Z)

62

Neutrons (N)

82

Mass number

144

Half-Life

Observationally stable

Abundance

3.08%

Mass

143.912 u

Mass Excess

-81,965.6 keV

Spin

0+

Discovered

1933

Binding energy per nucleon

8,304 keV

Neutron separation energy

10,520 keV

Proton separation energy

6,294 keV

Decay Mode

β⁺