I

Iodine-120m

Protons (Z)

53

Neutrons (N)

67

Mass number

120

Half-Life

242.0 ns

Abundance

---

Mass

119.91 u

Mass Excess

-83,674.0 keV

Spin

3+

Discovered

1974

Binding energy per nucleon

8,423 keV

Neutron separation energy

7,967 keV

Proton separation energy

3,780 keV

Decay Mode

γIodine-120100%

Decay chain

Iodine-120Z 53 · N 67242.0 ns
γ100%
β⁺100%