Ce

Cerium-129

Protons (Z)

58

Neutrons (N)

71

Mass number

129

Half-Life

3.5 m

Abundance

---

Mass

128.918 u

Mass Excess

-76,288.0 keV

Spin

(5/2+)

Discovered

1977

Binding energy per nucleon

8,311 keV

Neutron separation energy

8,825 keV

Proton separation energy

4,947 keV

Decay Mode

β⁺Lanthanum-129100%

Decay chain

Cerium-129Z 58 · N 713.5 m
β⁺100%
β⁺100%
β⁺100%
β⁺100%