Eu

Europium-153

Protons (Z)

63

Neutrons (N)

90

Mass number

153

Half-Life

Observationally stable (>550.0 Py)

Abundance

52.19%

Mass

152.921 u

Mass Excess

-73,367.5 keV

Spin

5/2+

Discovered

1933

Binding energy per nucleon

8,229 keV

Neutron separation energy

8,550 keV

Proton separation energy

5,893 keV

Decay Mode

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