Eu

Europium-158

Protons (Z)

63

Neutrons (N)

95

Mass number

158

Half-Life

45.9 m

Abundance

---

Mass

157.928 u

Mass Excess

-67,270.5 keV

Spin

1-

Discovered

1951

Binding energy per nucleon

8,185 keV

Neutron separation energy

5,883 keV

Proton separation energy

7,881 keV

Decay Mode

β⁻Gadolinium-158100%

Decay chain

Europium-158Z 63 · N 9545.9 m
β⁻100%