I

Iodine-128n

Protons (Z)

53

Neutrons (N)

75

Mass number

128

Half-Life

175.0 ns

Abundance

---

Mass

127.906 u

Mass Excess

-87,571.0 keV

Spin

(6-)

Discovered

1991

Binding energy per nucleon

8,432 keV

Neutron separation energy

6,659 keV

Proton separation energy

6,579 keV

Decay Mode

γIodine-128100%

Decay chain

Iodine-128Z 53 · N 75175.0 ns
γ100%
β⁻93.1%