Os

Osmium-199

Protons (Z)

76

Neutrons (N)

123

Mass number

199

Half-Life

6.0 s

Abundance

---

Mass

198.978 u

Mass Excess

-20,270.0 keV

Spin

(5/2-)

Discovered

2008

Binding energy per nucleon

7,874 keV

Neutron separation energy

4,741 keV

Proton separation energy

10,569 keV

Decay Mode

β⁻Iridium-199100%

Decay chain

Osmium-199Z 76 · N 1236.0 s
β⁻100%
β⁻100%
β⁻100%
β⁻100%