| Proton | Neutron | Nuclear Spin | Energy State | |
|---|---|---|---|---|
| 40Mg | 12 | 28 | 0 | |
| 41Al | 13 | 28 | 3/2 | |
| 42Si | 14 | 28 | 0 | |
| 43P | 15 | 28 | 1/2 | |
| 44S | 16 | 28 | 0 | |
| 45Cl | 17 | 28 | 3/2 | |
| 46Ar | 18 | 28 | 0 | |
| 47K | 19 | 28 | 1/2 | |
| 48Ca | 20 | 28 | 0 | |
| 49Sc | 21 | 28 | -7/2 | |
| 50Ti | 22 | 28 | 0 | Stable |
| 51V | 23 | 28 | -7/2 | Stable |
| 52Cr | 24 | 28 | 0 | Stable |
| 53Mn | 25 | 28 | -7/2 | |
| 54Fe | 26 | 28 | 0 | Stable |
| 54mFe | 26 | 28 | 10 | |
| 55Co | 27 | 28 | -7/2 | |
| 56Ni | 28 | 28 | 0 | |
| 57Cu | 29 | 28 | -3/2 | |
| 58Zn | 30 | 28 | 0 | |
| 59Ga | 31 | 28 | -3/2 | |
| 60Ge | 32 | 28 | 0 | |
| 61As | 33 | 28 | -3/2 |