Ir

Iridium-181

Protons (Z)

77

Neutrons (N)

104

Mass number

181

Half-Life

4.9 m

Abundance

---

Mass

180.958 u

Mass Excess

-39,463.0 keV

Spin

5/2-

Discovered

1972

Binding energy per nucleon

7,957 keV

Neutron separation energy

9,556 keV

Proton separation energy

2,396 keV

Decay Mode

β⁺Osmium-181100%

Decay chain

Iridium-181Z 77 · N 1044.9 m
β⁺100%
β⁺100%
β⁺100%
EC100%