| Proton | Neutron | Nuclear Spin | Energy State | |
|---|---|---|---|---|
| 25N | 7 | 18 | -1/2 | |
| 27F | 9 | 18 | 5/2 | |
| 28Ne | 10 | 18 | 0 | |
| 29Na | 11 | 18 | 3/2 | |
| 30Mg | 12 | 18 | 0 | |
| 31Al | 13 | 18 | 3/2 | |
| 32Si | 14 | 18 | 0 | |
| 33P | 15 | 18 | 1/2 | |
| 34S | 16 | 18 | 0 | Stable |
| 35Cl | 17 | 18 | 3/2 | Stable |
| 36Ar | 18 | 18 | 0 | Stable |
| 37K | 19 | 18 | 3/2 | |
| 38Ca | 20 | 18 | 0 | |
| 39Sc | 21 | 18 | -7/2 | |
| 40Ti | 22 | 18 | 0 | |
| 41V | 23 | 18 | -7/2 | |
| 42Cr | 24 | 18 | 0 |