Rn

Radon-211m

Protons (Z)

86

Neutrons (N)

125

Mass number

211

Half-Life

596.0 ns

Abundance

---

Mass

210.992 u

Mass Excess

-7,152.0 keV

Spin

17/2-

Discovered

1981

Binding energy per nucleon

7,786 keV

Neutron separation energy

5,618 keV

Proton separation energy

2,469 keV

Decay Mode

γRadon-211100%

Decay chain

Radon-211Z 86 · N 125596.0 ns
γ100%
β⁺72.6%
EC58.2%
α100%