Eu

Europium-144m

Protons (Z)

63

Neutrons (N)

81

Mass number

144

Half-Life

1.0 µs

Abundance

---

Mass

143.92 u

Mass Excess

-74,491.0 keV

Spin

8-

Discovered

1976

Binding energy per nucleon

8,246 keV

Neutron separation energy

8,321 keV

Proton separation energy

2,263 keV

Decay Mode

γEuropium-144100%

Decay chain

Europium-144Z 63 · N 811.0 µs
γ100%
β⁺100%