| Proton | Neutron | Nuclear Spin | Energy State | |
|---|---|---|---|---|
| 205Au | 79 | 126 | 3/2 | |
| 206Hg | 80 | 126 | 0 | |
| 207mTl | 81 | 126 | -11/2 | |
| 207Tl | 81 | 126 | 1/2 | |
| 208mPb | 82 | 126 | 10 | |
| 208Pb | 82 | 126 | 0 | Stable |
| 209Bi | 83 | 126 | -9/2 | |
| 210mPo | 84 | 126 | 16 | |
| 210Po | 84 | 126 | 0 | |
| 211At | 85 | 126 | -9/2 | |
| 212Rn | 86 | 126 | 0 | |
| 213Fr | 87 | 126 | -9/2 | |
| 214Ra | 88 | 126 | 0 | |
| 215Ac | 89 | 126 | -9/2 | |
| 216m2Th | 90 | 126 | -11 | |
| 216Th | 90 | 126 | 0 | |
| 216m1Th | 90 | 126 | 8 | |
| 217Pa | 91 | 126 | -9/2 | |
| 217mPa | 91 | 126 | 29/2 | |
| 218U | 92 | 126 | 0 |