Ce

Cerium-138m

Protons (Z)

58

Neutrons (N)

80

Mass number

138

Half-Life

8.73 ms

Abundance

---

Mass

137.908 u

Mass Excess

-85,436.6 keV

Spin

7-

Discovered

1960

Binding energy per nucleon

8,362 keV

Neutron separation energy

7,589 keV

Proton separation energy

5,585 keV

Decay Mode

γCerium-138100%

Decay chain

Cerium-138Z 58 · N 808.73 ms
γ100%