Eu
Europium-135
Protons (Z)
63
Neutrons (N)
72
Mass number
135
Half-Life
1.5 s
Abundance
---
Mass
134.942 u
Mass Excess
-54,150.0 keV
Spin
(5/2+)
Discovered
1989
Binding energy per nucleon
8,107 keV
Neutron separation energy
12,421 keV
Proton separation energy
59 keV
Decay Mode
Decay chain
- EuEuropium-135Z 63 · N 721.5 s
- β⁺100%
- β⁺99.98%
- β⁺100%
- β⁺100%
- β⁺100%
- β⁺100%
- β⁺100%