| Proton | Neutron | Nuclear Spin | Energy State | |
|---|---|---|---|---|
| 14F | 9 | 5 | -2 | |
| 15F | 9 | 6 | 1/2 | |
| 16F | 9 | 7 | 0 | |
| 17F | 9 | 8 | 5/2 | |
| 18mF | 9 | 9 | 5 | |
| 18F | 9 | 9 | 1 | |
| 19F | 9 | 10 | 1/2 | Stable |
| 20F | 9 | 11 | 2 | |
| 21F | 9 | 12 | 5/2 | |
| 22F | 9 | 13 | 2 | |
| 23F | 9 | 14 | 5/2 | |
| 24F | 9 | 15 | 3 | |
| 25F | 9 | 16 | 5/2 | |
| 26F | 9 | 17 | 1 | |
| 27F | 9 | 18 | 5/2 | |
| 28F | 9 | 19 | 2 | |
| 29F | 9 | 20 | 5/2 | |
| 30F | 9 | 21 | 2 | |
| 31F | 9 | 22 | 5/2 |