Rn

Radon-219

Protons (Z)

86

Neutrons (N)

133

Mass number

219

Half-Life

3.96 s

Abundance

---

Mass

219.009 u

Mass Excess

8,829.3 keV

Spin

5/2+

Discovered

1903

Binding energy per nucleon

7,724 keV

Neutron separation energy

4,459 keV

Proton separation energy

6,560 keV

Decay Mode

αPolonium-215100%

Decay chain

Radon-219Z 86 · N 1333.96 s
α100%
α~100%
β⁻100%
α~100%
β⁻100%