Ir

Iridium-199

Protons (Z)

77

Neutrons (N)

122

Mass number

199

Half-Life

7.0 s

Abundance

---

Mass

198.974 u

Mass Excess

-24,400.0 keV

Spin

(3/2+)

Discovered

1993

Binding energy per nucleon

7,891 keV

Neutron separation energy

6,761 keV

Proton separation energy

8,089 keV

Decay Mode

β⁻Platinum-199100%

Decay chain

Iridium-199Z 77 · N 1227.0 s
β⁻100%
β⁻100%
β⁻100%