in choosing which isotopes to search.
| Isotope | Relative Atomic Mass |
Isotopic Composition |
Standard Atomic Weight |
Notes | ||||
|---|---|---|---|---|---|---|---|---|
 | ||||||||
| 7 | N | 14 | 14.003 074 004 43(20) | 0.996 36(20) | [14.006 43, 14.007 28] | |||
| 15 | 15.000 108 898 88(64) | 0.003 64(20) | ||||||
| 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) | ||||||
| ||||||||
