Rn

Radon-197

Protons (Z)

86

Neutrons (N)

111

Mass number

197

Half-Life

54.0 ms

Abundance

---

Mass

197.002 u

Mass Excess

1,510.0 keV

Spin

3/2-

Discovered

1995

Binding energy per nucleon

7,722 keV

Neutron separation energy

8,536 keV

Proton separation energy

1,869 keV

Decay Mode

Decay chain

Radon-197Z 86 · N 11154.0 ms
α100%
α100%
β⁺99.58%
β⁺100%
β⁺100%
β⁺~100%
β⁺100%
EC100%