in choosing which isotopes to search.
| Isotope | Relative Atomic Mass |
Isotopic Composition |
Standard Atomic Weight |
Notes | ||||
|---|---|---|---|---|---|---|---|---|
 | ||||||||
| 9 | F | 19 | 18.998 403 20(7) | 100 | 18.998 403 2(5) | |||
| 14 | Si | 28 | 27.976 926 5327(20) | 92.2297(7) | 28.0855(3) | r | ||
| 29 | 28.976 494 72(3) | 4.6832(5) | ||||||
| 30 | 29.973 770 22(5) | 3.0872(5) | ||||||
| ||||||||
