Isotopes of Radium (Ra)

Symbol Mass Number Relative Atomic Mass Isotopic Composition
202Ra 202 202.009890(70)
203Ra 203 203.009270(90)
204Ra 204 204.006500(17)
205Ra 205 205.006270(90)
206Ra 206 206.003827(19)
207Ra 207 207.003800(60)
208Ra 208 208.001840(17)
209Ra 209 209.001990(50)
210Ra 210 210.000495(16)
211Ra 211 211.000898(28)
212Ra 212 211.999794(12)
213Ra 213 213.000384(22)
214Ra 214 214.000108(10)
215Ra 215 215.002720(8)
216Ra 216 216.003533(9)
217Ra 217 217.006320(9)
218Ra 218 218.007140(12)
219Ra 219 219.010085(9)
220Ra 220 220.011028(10)
221Ra 221 221.013917(5)
222Ra 222 222.015375(5)
223Ra 223 223.0185022(27)
224Ra 224 224.0202118(24)
225Ra 225 225.023612(3)
226Ra 226 226.0254098(25)
227Ra 227 227.0291778(25)
228Ra 228 228.0310703(26)
229Ra 229 229.034958(20)
230Ra 230 230.037056(13)
231Ra 231 231.04122(32)#
232Ra 232 232.04364(30)#
233Ra 233 233.04806(50)#
234Ra 234 234.05070(53)#

Legend

Mass Number
Relative Atomic Mass
Isotopic Composition
Standard Atomic Weight
Ra: [226]