Isotopes of Actinium (Ac)

Symbol Mass Number Relative Atomic Mass Isotopic Composition
206Ac 206 206.014500(80)
207Ac 207 207.011950(60)
208Ac 208 208.011550(60)
209Ac 209 209.009490(50)
210Ac 210 210.009440(60)
211Ac 211 211.007730(80)
212Ac 212 212.007810(70)
213Ac 213 213.006610(60)
214Ac 214 214.006902(24)
215Ac 215 215.006454(23)
216Ac 216 216.008720(29)
217Ac 217 217.009347(14)
218Ac 218 218.011640(50)
219Ac 219 219.012420(50)
220Ac 220 220.014763(16)
221Ac 221 221.015590(50)
222Ac 222 222.017844(6)
223Ac 223 223.019137(8)
224Ac 224 224.021723(4)
225Ac 225 225.023230(5)
226Ac 226 226.026098(4)
227Ac 227 227.0277521(26)
228Ac 228 228.0310211(27)
229Ac 229 229.033020(40)
230Ac 230 230.03629(32)
231Ac 231 231.03856(11)
232Ac 232 232.04203(11)
233Ac 233 233.04455(32)#
234Ac 234 234.04842(43)#
235Ac 235 235.05123(38)#
236Ac 236 236.05530(54)#

Legend

Mass Number
Relative Atomic Mass
Isotopic Composition
Standard Atomic Weight
Ac: [227]