Ir

Iridium-203n

Protons (Z)

77

Neutrons (N)

126

Mass number

203

Half-Life

798.0 ns

Abundance

---

Mass

202.987 u

Mass Excess

-12,230.0 keV

Spin

(23/2+)

Discovered

2011

Binding energy per nucleon

7,835 keV

Neutron separation energy

3,661 keV

Proton separation energy

6,989 keV

Decay Mode

γIridium-203100%

Decay chain

Iridium-203Z 77 · N 126798.0 ns
γ100%
β⁻
β⁻100%
β⁻100%
β⁻100%