Rn
Radon-202m
Protons (Z)
86
Neutrons (N)
116
Mass number
202
Half-Life
2.22 µs
Abundance
---
Mass
201.996 u
Mass Excess
-3,970.0 keV
Spin
(11-)
Discovered
2002
Binding energy per nucleon
7,758 keV
Neutron separation energy
7,934 keV
Proton separation energy
470 keV
Decay Mode
- γ→Radon-202100%
Decay chain
- RnRadon-202Z 86 · N 1162.22 µs
- γ100%
- α78%
- α57%
- β⁺~100%
- β⁺100%
- EC100%
- β⁺100%