| Proton | Neutron | Nuclear Spin | Energy State | |
|---|---|---|---|---|
| 209Hg | 80 | 129 | 9/2 | |
| 210Tl | 81 | 129 | 5 | |
| 211Pb | 82 | 129 | 9/2 | |
| 212Bi | 83 | 129 | -1 | |
| 212m1Bi | 83 | 129 | -9 | |
| 213Po | 84 | 129 | 9/2 | |
| 214m2At | 85 | 129 | -9 | |
| 214At | 85 | 129 | -1 | |
| 215Rn | 86 | 129 | 9/2 | |
| 216Fr | 87 | 129 | -1 | |
| 217Ra | 88 | 129 | 9/2 | |
| 218Ac | 89 | 129 | -1 | |
| 218mAc | 89 | 129 | 11 | |
| 219Th | 90 | 129 | 9/2 | |
| 220Pa | 91 | 129 | -1 | |
| 221U | 92 | 129 | 9/2 |