I

Iodine-136m

Protons (Z)

53

Neutrons (N)

83

Mass number

136

Half-Life

46.6 s

Abundance

---

Mass

135.915 u

Mass Excess

-79,339.0 keV

Spin

(6-)

Discovered

1959

Binding energy per nucleon

8,350 keV

Neutron separation energy

3,631 keV

Proton separation energy

8,899 keV

Decay Mode

β⁻Xenon-136100%

Decay chain

Iodine-136Z 53 · N 8346.6 s
β⁻100%