Eu

Europium-146m

Protons (Z)

63

Neutrons (N)

83

Mass number

146

Half-Life

235.0 µs

Abundance

---

Mass

145.918 u

Mass Excess

-76,452.0 keV

Spin

9+

Discovered

1962

Binding energy per nucleon

8,257 keV

Neutron separation energy

6,531 keV

Proton separation energy

3,090 keV

Decay Mode

γEuropium-146100%

Decay chain

Europium-146Z 63 · N 83235.0 µs
γ100%
β⁺100%
α100%