Ce

Cerium-131m

Protons (Z)

58

Neutrons (N)

73

Mass number

131

Half-Life

5.4 m

Abundance

---

Mass

130.914 u

Mass Excess

-79,650.0 keV

Spin

(1/2+)

Discovered

1966

Binding energy per nucleon

8,333 keV

Neutron separation energy

8,298 keV

Proton separation energy

5,312 keV

Decay Mode

β⁺Lanthanum-131100%

Decay chain

Cerium-131Z 58 · N 735.4 m
β⁺100%
β⁺100%
β⁺100%
EC100%