Isotopes of Francium (Fr)

Symbol Mass Number Relative Atomic Mass Isotopic Composition
199Fr 199 199.007260(40)
200Fr 200 200.006570(80)
201Fr 201 201.003860(80)
202Fr 202 202.003370(50)
203Fr 203 203.000925(17)
204Fr 204 204.000653(26)
205Fr 205 204.998594(8)
206Fr 206 205.998670(30)
207Fr 207 206.996950(50)
208Fr 208 207.997140(50)
209Fr 209 208.995954(16)
210Fr 210 209.996408(24)
211Fr 211 210.995537(23)
212Fr 212 211.996202(28)
213Fr 213 212.996189(8)
214Fr 214 213.998971(9)
215Fr 215 215.000341(8)
216Fr 216 216.003198(15)
217Fr 217 217.004632(7)
218Fr 218 218.007578(5)
219Fr 219 219.009252(8)
220Fr 220 220.012327(4)
221Fr 221 221.014255(5)
222Fr 222 222.017552(23)
223Fr 223 223.0197359(26)
224Fr 224 224.023250(50)
225Fr 225 225.025570(30)
226Fr 226 226.02939(11)
227Fr 227 227.03184(11)
228Fr 228 228.03573(22)#
229Fr 229 229.038450(40)
230Fr 230 230.04251(48)#
231Fr 231 231.04544(50)#
232Fr 232 232.04977(69)#

Legend

Mass Number
Relative Atomic Mass
Isotopic Composition
Standard Atomic Weight
Fr: [223]