Rn

Radon-204

Protons (Z)

86

Neutrons (N)

118

Mass number

204

Half-Life

1.24 m

Abundance

---

Mass

203.991 u

Mass Excess

-7,970.0 keV

Spin

0+

Discovered

1967

Binding energy per nucleon

7,781 keV

Neutron separation energy

9,857 keV

Proton separation energy

3,096 keV

Decay Mode

Decay chain

Radon-204Z 86 · N 1181.24 m
α72.4%
β⁺88.9%
β⁺100%
EC100%
β⁺100%