Iridium-192 (Ir-192)

Identity

Protons

77

Neutrons

115

Mass number

192

Mass

192.0 ± 1.4 u

Mass excess

-34.836 MeV

Spin

4+*

Stability

Half-life: 73.8 days

Natural occurrence

Not found in nature

Decays to

• beta minus 95.2 % → Pt-192
• electron capture 4.8 % → Os-192