Eu

Europium-143m

Protons (Z)

63

Neutrons (N)

80

Mass number

143

Half-Life

50.0 µs

Abundance

---

Mass

142.921 u

Mass Excess

-73,851.0 keV

Spin

11/2-

Discovered

1978

Binding energy per nucleon

8,243 keV

Neutron separation energy

10,612 keV

Proton separation energy

2,158 keV

Decay Mode

γEuropium-143100%

Decay chain

Europium-143Z 63 · N 8050.0 µs
γ100%
β⁺100%
β⁺100%
EC~100%