This is “Appendix I: Experimentally Measured Masses of Selected Isotopes”, appendix 9 from the book Principles of General Chemistry (v. 1.0). For details on it (including licensing), click here.
For more information on the source of this book, or why it is available for free, please see the project's home page. You can browse or download additional books there. To download a .zip file containing this book to use offline, simply click here.
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 |
Data source: G. Audi, A. H. Wapstra, and C. Thibault, The AME2003 atomic mass evaluation.
This table is provided as a reference.
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 |