| Proton | Neutron | Nuclear Spin | Energy State | |
|---|---|---|---|---|
| 202Pt | 78 | 124 | 0 | |
| 203Au | 79 | 124 | 3/2 | |
| 204Hg | 80 | 124 | 0 | Stable |
| 205Tl | 81 | 124 | 1/2 | Stable |
| 205m2Tl | 81 | 124 | -35/2 | |
| 205m1Tl | 81 | 124 | 25/2 | |
| 206Pb | 82 | 124 | 0 | Stable |
| 206m1Pb | 82 | 124 | -7 | |
| 206m2Pb | 82 | 124 | 12 | |
| 207mBi | 83 | 124 | 21/2 | |
| 207Bi | 83 | 124 | -9/2 | |
| 208Po | 84 | 124 | 0 | |
| 209At | 85 | 124 | -9/2 | |
| 210m2Rn | 86 | 124 | -17 | |
| 210Rn | 86 | 124 | 0 | |
| 210m1Rn | 86 | 124 | 8 | |
| 210m3Rn | 86 | 124 | 22 | |
| 211Fr | 87 | 124 | -9/2 | |
| 212m2Ra | 88 | 124 | -11 | |
| 212Ra | 88 | 124 | 0 | |
| 212m1Ra | 88 | 124 | 8 | |
| 213Ac | 89 | 124 | -9/2 | |
| 214Th | 90 | 124 | 0 | |
| 215Pa | 91 | 124 | -9/2 |