in choosing which isotopes to search.
| Isotope | Relative Atomic Mass |
Isotopic Composition |
Standard Atomic Weight |
Notes | ||||
|---|---|---|---|---|---|---|---|---|
 | ||||||||
| 8 | O | 16 | 15.994 914 619 57(17) | 0.997 57(16) | [15.999 03, 15.999 77] | |||
| 17 | 16.999 131 756 50(69) | 0.000 38(1) | ||||||
| 18 | 17.999 159 612 86(76) | 0.002 05(14) | ||||||
| 26 | Fe | 54 | 53.939 608 99(53) | 0.058 45(35) | 55.845(2) | |||
| 56 | 55.934 936 33(49) | 0.917 54(36) | ||||||
| 57 | 56.935 392 84(49) | 0.021 19(10) | ||||||
| 58 | 57.933 274 43(53) | 0.002 82(4) | ||||||
| ||||||||
