in choosing which isotopes to search.
| Isotope | Relative Atomic Mass |
Isotopic Composition |
Standard Atomic Weight |
Notes | ||||
|---|---|---|---|---|---|---|---|---|
 | ||||||||
| 8 | O | 16 | 15.994 914 6221(15) | 99.757(16) | 15.9994(3) | g,r | ||
| 17 | 16.999 131 50(22) | 0.038(1) | ||||||
| 18 | 17.999 160 4(9) | 0.205(14) | ||||||
| 35 | Br | 79 | 78.918 3376(20) | 50.69(7) | 79.904(1) | |||
| 81 | 80.916 291(3) | 49.31(7) | ||||||
| ||||||||
