Sm
Samarium-149
Protons (Z)
62
Neutrons (N)
87
Mass number
149
Half-Life
Stable
Abundance
13.82%
Mass
148.917 u
Mass Excess
-77,135.9 keV
Spin
7/2-
Discovered
1933
Binding energy per nucleon
8,263 keV
Neutron separation energy
5,871 keV
Proton separation energy
7,559 keV
Decay Mode
- α→Neodymium-145