Ce

Cerium-127m

Protons (Z)

58

Neutrons (N)

69

Mass number

127

Half-Life

28.6 s

Abundance

---

Mass

126.923 u

Mass Excess

-71,972.0 keV

Spin

(5/2+)

Discovered

1978

Binding energy per nucleon

8,281 keV

Neutron separation energy

9,222 keV

Proton separation energy

4,291 keV

Decay Mode

β⁺Lanthanum-127100%

Decay chain

Cerium-127Z 58 · N 6928.6 s
β⁺100%
β⁺100%
β⁺100%
β⁺100%
EC100%