Ir

Iridium-181m

Protons (Z)

77

Neutrons (N)

104

Mass number

181

Half-Life

298.0 ns

Abundance

---

Mass

180.958 u

Mass Excess

-39,174.0 keV

Spin

5/2+

Discovered

1992

Binding energy per nucleon

7,955 keV

Neutron separation energy

9,267 keV

Proton separation energy

2,107 keV

Decay Mode

γIridium-181100%

Decay chain

Iridium-181Z 77 · N 104298.0 ns
γ100%
β⁺100%
β⁺100%
β⁺100%
EC100%