Ce
Cerium-135m
Protons (Z)
58
Neutrons (N)
77
Mass number
135
Half-Life
20.0 s
Abundance
---
Mass
134.91 u
Mass Excess
-84,170.0 keV
Spin
(11/2-)
Discovered
1963
Binding energy per nucleon
8,359 keV
Neutron separation energy
7,408 keV
Proton separation energy
6,240 keV
Decay Mode
- γ→Cerium-135100%
Decay chain
- CeCerium-135Z 58 · N 7720.0 s
- γ100%
- β⁺100%
- β⁺100%