Isotopes


 

 

206 Ra 214 Ra 221 Ra
207 Ra 215 Ra 222 Ra
208 Ra 216 Ra 225 Ra
209 Ra 217 Ra 227 Ra
210 Ra 218 Ra 229 Ra
211 Ra 219 Ra 230Ra
212 Ra 220 Ra  
213 Ra 221 Ra  

223Ra are naturally occuring

224Ra are naturally occuring

226 Ra are naturally occuring

228 Ra are naturally occuring