| Proton | Neutron | Nuclear Spin | Energy State | |
|---|---|---|---|---|
| 18Na | 11 | 7 | -1 | |
| 19Na | 11 | 8 | 5/2 | |
| 20Na | 11 | 9 | 2 | |
| 21Na | 11 | 10 | 3/2 | |
| 22mNa | 11 | 11 | 1 | |
| 22Na | 11 | 11 | 3 | |
| 23Na | 11 | 12 | 3/2 | Stable |
| 24Na | 11 | 13 | 4 | |
| 24mNa | 11 | 13 | 1 | |
| 25Na | 11 | 14 | 5/2 | |
| 26Na | 11 | 15 | 3 | |
| 27Na | 11 | 16 | 5/2 | |
| 28Na | 11 | 17 | 1 | |
| 29Na | 11 | 18 | 3/2 | |
| 30Na | 11 | 19 | 2 | |
| 31Na | 11 | 20 | 3/2 | |
| 32Na | 11 | 21 | -4 | |
| 33Na | 11 | 22 | 3/2 | |
| 34Na | 11 | 23 | 1 | |
| 35Na | 11 | 24 | 3/2 | |
| 36Na | 11 | 25 | 1 | |
| 37Na | 11 | 26 | 3/2 |