EnvironmentalChemistry.com
Environmental, Chemistry & Hazardous Materials News, Careers & Resources

Periodic Table of Elements

Rn - Radon

Radon Menu

Nuclides / Isotopes

Nuc-
lide		Atomic
Mass		NNAbun
%		SpinHalf LifeDMDTBR
%		Decay
Energy
(MeV)
Rn196196.002110Syn0+3ms    
Rn197197.002111Syn3/2-65ms    
Rn198197.999112Syn0+64msαPo194 7.345
 64msεAt198 5.600
Rn199198.998113Syn3.2-0.62sαPo195977.140
 0.62sεAt19937.200
Rn200199.996114Syn0+0.96sαPo196~987.043
 0.96sεAt200~25.000
Rn201200.996115Syn3/2-7sαPo197~806.860
 7sεAt201~206.600
meta state 0.280MeVSyn13/2+3.8sαPo197~907.140
 3.8sεAt201~100.280
 3.8sITRn201~00.280
Rn202201.993116Syn0+10sαPo198866.774
 10sεAt202144.440
Rn203202.993117Syn5/2-45sαPo199666.630
 45sεAt203346.000
meta state 0.361MeVSyn13/2+28sαPo199~806.991
 28sεAt203~206.361
 28sITRn203<0.100.361
Rn204203.991118Syn0+1.24mαPo200736.546
 1.24mεAt204273.820
Rn205204.992119Syn5/2-2.8mεAt205775.240
 2.8mαPo201236.390
Rn206205.99120Syn0+5.67mαPo202626.384
 5.67mεAt206383.310
Rn207206.9907121Syn5/2-9.25mεAt207794.610
 9.25mαPo203216.251
Rn208207.9896122Syn0+24.35mαPo204626.260
 24.35mεAt208382.850
Rn209208.9904123Syn5/2-28.5mεAt209833.930
 28.5mαPo205176.155
Rn210209.9897124Syn0+2.4hαPo206966.159
 2.4hεAt21042.374
Rn211210.9906125Syn1/2-14.6hεAt21172.62.892
 14.6hαPo20727.45.965
Rn212211.9907126Syn0+23.9mαPo208 6.385
Rn213212.9939127Syn9/2+25msαPo209 8.243
Rn214213.9953128Syn0+0.27usαPo210 9.208
meta state 1.442MeVSyn6+0.69nsITRn214<1001.443
 0.69nsαPo210>010.651
meta state 1.625MeVSyn8+6.5nsITRn214~901.625
 6.5nsαPo210~1010.833
Rn215214.9987129Syn9/2+2.3usαPo211 8.839
Rn216216.0003130Syn0+45usαPo212 8.200
Rn217217.0039131Syn9/2+0.54msαPo213 7.889
Rn218218.0056132Syn0+35msαPo214 7.263
Rn219219.0095133Syn5/2+3.96sαPo215 6.945
Rn220220.0114134Syn0+55.6sαPo216 6.405
Rn221221.015135Syn7/2+25mβ-Fr221781.220
 25mαPo217226.146
Rn222222.0176136100.0+3.8235dαPo218 5.590
Rn223223.0218137Syn7/2+23.2mβ-Fr223  
Rn224224.024138Syn0+107mβ-Fr224 0.800
Rn225225.0284139Syn7/2-4.5mβ-Fr225  
Rn226226.031140Syn0+7.4mβ-Fr226 1.400
Rn227227.035141Syn 22.5sβ-Fr227  
Rn228228.038142Syn0+65sβ-Fr228 2.200
NuclidePotential Parent Nuclides
Rn196None known
Rn197None known
Rn198None known
Rn199None known
Rn200Ra204 (Syn)
Rn201Fr201 (Syn) Ra205 (Syn) Rn201m (Syn)
meta state 0.280MeVNone known
Rn202Fr202 (Syn) Fr202m (Syn) Ra206 (Syn)
Rn203Fr203 (Syn) Ra207 (Syn) Ra207m (Syn) Rn203m (Syn)
meta state 0.361MeVNone known
Rn204Fr204 (Syn) Ra208 (Syn)
Rn205Fr205 (Syn) Ra209 (Syn)
Rn206Fr206 (Syn) Ra210 (Syn)
Rn207Fr207 (Syn) Ra211 (Syn)
Rn208Fr208 (Syn) Ra212 (Syn)
Rn209Fr209 (Syn) Ra213 (Syn) Ra213m (Syn)
Rn210Fr210 (Syn) Ra214 (Syn)
Rn211Fr211 (Syn) Ra215 (Syn)
Rn212At212 (Syn) Fr212 (Syn) Ra216 (Syn) Ra216m (Syn) Ra216m1 (Syn) Ra216M2 (Syn)
Rn213Fr213 (Syn) Ra217 (Syn)
Rn214Ra218 (Syn) Rn214m (Syn) Rn214m1 (Syn)
meta state 1.442MeVNone known
meta state 1.625MeVNone known
Rn215Ra219 (Syn)
Rn216At216 (Syn) Fr216 (Syn) Ra220 (Syn)
Rn217At217 (Syn) Ra221 (Syn)
Rn218At218 (Syn) Ra222 (Syn)
Rn219At219 (Syn) Ra223 (Syn)
Rn220At220 (Syn) Ra224 (Syn)
Rn221At221 (Syn)
Rn222At222 (Syn) Ra226 (Natural)
Rn223At223 (Syn)
Rn224None known
Rn225None known
Rn226None known
Rn227None known
Rn228None known

Key:

  • NN = Number of Neutrons
  • Abun % = Natural Abundance (as a percentage)
  • Syn = Synthetic Nuclide (does not occur in nature)
  • DM = Decay Mode
    α = Alpha emission
    β- = Beta emission
    β- β- = Double beta decay
    β+ = Positron emission
    ε = Electron Capture
    IT = Isomeric Transition
    N = Neutron emission
    P = Proton emission
    SF = Spontaneous Fission
  • DT = Decays To
  • BR % = Branch Ratio (as a percentage)

Radon Menu

References

A list of reference sources used to compile the data provided on our periodic table of elements can be found on the main periodic table page.

Related Resources

Citing this page

If you need to cite this page, you can copy this text: