Eu

Europium-136m

Protons (Z)

63

Neutrons (N)

73

Mass number

136

Half-Life

3.8 s

Abundance

---

Mass

135.94 u

Mass Excess

-56,140.0 keV

Spin

(1+)

Discovered

1987

Binding energy per nucleon

8,122 keV

Neutron separation energy

10,061 keV

Proton separation energy

569 keV

Decay Mode

Decay chain

Europium-136Z 63 · N 733.8 s
β⁺99.91%
β⁺100%
β⁺100%
β⁺100%
β⁺100%