Ir

Iridium-197m

Protons (Z)

77

Neutrons (N)

120

Mass number

197

Half-Life

8.9 m

Abundance

---

Mass

196.97 u

Mass Excess

-28,149.0 keV

Spin

11/2-

Discovered

1976

Binding energy per nucleon

7,908 keV

Neutron separation energy

6,780 keV

Proton separation energy

7,158 keV

Decay Mode

Decay chain

Iridium-197Z 77 · N 1208.9 m
β⁻100%
β⁻100%