Cd

Cadmium-121m

Protons (Z)

48

Neutrons (N)

73

Mass number

121

Half-Life

8.3 s

Abundance

---

Mass

120.913 u

Mass Excess

-80,858.9 keV

Spin

11/2-

Discovered

1982

Binding energy per nucleon

8,429 keV

Neutron separation energy

4,973 keV

Proton separation energy

12,496 keV

Decay Mode

β⁻Indium-121100%

Decay chain

Cadmium-121Z 48 · N 738.3 s
β⁻100%
β⁻100%
β⁻100%