Au197 196.966543 100 Hg196 195.965807 0.15 Hg198 197.966743 10.1 Hg199 198.968254 17 Hg200 199.968300 23.1 Hg201 200.970277 13.2 Hg202 201.970617 29.65 Hg204 203.973467 6.8 T203 202.972320 29.524 Tn205 204.974401 70.476 Pb204 203.973020 1.4 Pb206 205.974440 24.1 Pb207 206.975872 22.1 Pb208 207.976627 52.4 Bi209 208.980374 100 Po At 、 Rn Fr Ra Ac 。 Th232 232.038054 100 Pa U234 234.040946 0.0055 U235 235.043924 0.720 U238 238.050784 99.2745 Data reprinted from CRC Handbook of Chemistry and Physics,69th ed.,1988-89. Boca Raton,Fl:CRC Press,Inc. De Blevre,P.Bames,IL: Intl.J.of Mass Spectrometry and lon Processes.1985;65:211-230. Au197 196.966543 100 Hg196 195.965807 0.15 Hg198 197.966743 10.1 Hg199 198.968254 17 Hg200 199.968300 23.1 Hg201 200.970277 13.2 Hg202 201.970617 29.65 Hg204 203.973467 6.8 Tl203 202.972320 29.524 Tl205 204.974401 70.476 Pb204 203.973020 1.4 Pb206 205.974440 24.1 Pb207 206.975872 22.1 Pb208 207.976627 52.4 Bi209 208.980374 100 Po - - At - - Rn - - Fr - - Ra - - Ac - - Th232 232.038054 100 Pa - - U 234 234.040946 0.0055 U 235 235.043924 0.720 U 238 238.050784 99.2745 Data reprinted from CRC Handbook of Chemistry and Physics, 69th ed., 1988-89. Boca Raton, Fl: CRC Press, Inc. & De Blevre, P, Barnes, IL: Intl. J. of Mass Spectrometry and Ion Processes. 1985; 65:211- 230