Isotopes of Gold (Au)

Symbol Mass Number Relative Atomic Mass Isotopic Composition
169Au 169 168.99808(32)#
170Au 170 169.99612(22)#
171Au 171 170.991879(28)
172Au 172 171.99004(17)#
173Au 173 172.986237(28)
174Au 174 173.98476(11)#
175Au 175 174.981270(50)
176Au 176 175.98010(11)#
177Au 177 176.976865(14)
178Au 178 177.976030(60)
179Au 179 178.973213(18)
180Au 180 179.972521(23)
181Au 181 180.970079(21)
182Au 182 181.969618(22)
183Au 183 182.967593(11)
184Au 184 183.967452(24)
185Au 185 184.965789(28)
186Au 186 185.965953(23)
187Au 187 186.964568(27)
188Au 188 187.965324(22)
189Au 189 188.963948(22)
190Au 190 189.964700(17)
191Au 191 190.963700(40)
192Au 192 191.964813(17)
193Au 193 192.964150(11)
194Au 194 193.965365(11)
195Au 195 194.9650346(14)
196Au 196 195.966570(3)
197Au 197 196.9665687(6) 1.0000
198Au 198 197.9682423(6)
199Au 199 198.9687652(6)
200Au 200 199.970730(50)
201Au 201 200.971657(3)
202Au 202 201.97381(18)
203Au 203 202.975155(3)
204Au 204 203.97772(22)#
205Au 205 204.97987(32)#

Legend

Mass Number
Relative Atomic Mass
Isotopic Composition
Standard Atomic Weight
Au: 196.966569(5)

Isotopic Composition