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A4: Masses of Selected Isotopes

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    9071
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    Isotope Mass (amu) Isotope Mass (amu) Isotope Mass (amu)
    1H 1.007825 14N 14.003074 208Po 207.981246
    2H 2.014102 16O 15.994915 210Po 209.982874
    3H 3.016049 52Cr 51.940508 222Rn 222.017578
    3He 3.016029 56Fe 55.934938 226Ra 226.025410
    4He 4.002603 59Co 58.933195 230Th 230.033134
    6Li 6.015123 58Ni 57.935343 234Th 234.043601
    7Li 7.016005 60Ni 59.930786 234Pa 234.043308
    9Be 9.012182 90Rb 89.914802 233U 233.039635
    10B 10.012937 144Cs 143.932077 234U 234.040952
    11B 11.009305 206Pb 205.974465 235U 235.043930
    12C 12 207Pb 206.975897 238U 238.050788
    13C 13.003355 208Pb 207.976652 239Pu 239.052163
    14C 14.003242
    Isotope Mass (amu) Isotope Mass (amu)
    8B 8.024607 209Fr 208.99592
    40K 39.963998 210Po 209.982874
    52Cr 51.940508 212At 211.990745
    58Ni 57.935343 214Pb 213.999797
    59Co 58.933195 214Bi 213.998712
    60Co 59.933817 216Fr 216.003198
    60Ni 59.930786 199Pb 198.972917
    90Sr 89.907738 222Rn 222.017578
    92Kr 91.926156 226Ra 226.025410
    141Ba 140.914411 227Ra 227.029178
    143Xe 142.935110 228Ac 228.031021
    167Os 166.971550 230Th 230.033134
    171Pt 170.981240 233U 233.039635
    194Hg 193.965439 234Th 234.043601
    194Tl 193.971200 234Pa 234.043308
    199Pb 198.972917 233U 233.039635
    199Bi 198.977672 234U 234.040952
    206Pb 205.974465 235U 235.043930
    207Pb 206.975897 238Pa 238.054500
    208Pb 207.976652 238U 238.050788
    208Bi 207.979742 239Pu 239.052163
    208Po 207.981246 245Pu 245.067747

    Data source: G. Audi, A. H. Wapstra, and C. Thibault, The AME2003 atomic mass evaluation.


    A4: Masses of Selected Isotopes is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by LibreTexts.

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