Rn
Radon-207m
Protons (Z)
86
Neutrons (N)
121
Mass number
207
Half-Life
184.5 µs
Abundance
---
Mass
206.992 u
Mass Excess
-7,736.0 keV
Spin
13/2+
Discovered
1974
Binding energy per nucleon
7,784 keV
Neutron separation energy
6,674 keV
Proton separation energy
2,586 keV
Decay Mode
- γ→Radon-207100%
Decay chain
- RnRadon-207Z 86 · N 121184.5 µs
- γ100%
- β⁺79%
- β⁺90%
- β⁺~100%
- β⁺100%