Sb

Antimony-131m

Protons (Z)

51

Neutrons (N)

80

Mass number

131

Half-Life

64.2 µs

Abundance

---

Mass

130.914 u

Mass Excess

-80,305.3 keV

Spin

15/2-

Discovered

1969

Binding energy per nucleon

8,380 keV

Neutron separation energy

6,091 keV

Proton separation energy

7,462 keV

Decay Mode

γAntimony-131100%

Decay chain

Antimony-131Z 51 · N 8064.2 µs
γ100%
β⁻100%
β⁻100%
β⁻100%