| Proton | Neutron | Nuclear Spin | Energy State | |
|---|---|---|---|---|
| 138Dy | 66 | 72 | 0 | |
| 139Dy | 66 | 73 | 7/2 | |
| 140mDy | 66 | 74 | -8 | |
| 140Dy | 66 | 74 | 0 | |
| 141Dy | 66 | 75 | -9/2 | |
| 142Dy | 66 | 76 | 0 | |
| 143mDy | 66 | 77 | -11/2 | |
| 143Dy | 66 | 77 | 1/2 | |
| 144Dy | 66 | 78 | 0 | |
| 145mDy | 66 | 79 | -11/2 | |
| 145Dy | 66 | 79 | 1/2 | |
| 146Dy | 66 | 80 | 0 | |
| 146mDy | 66 | 80 | 10 | |
| 147Dy | 66 | 81 | 1/2 | |
| 147m2Dy | 66 | 81 | -27/2 | |
| 147m1Dy | 66 | 81 | -11/2 | |
| 148Dy | 66 | 82 | 0 | |
| 149Dy | 66 | 83 | -7/2 | |
| 149mDy | 66 | 83 | -27/2 | |
| 150Dy | 66 | 84 | 0 | |
| 151Dy | 66 | 85 | -7/2 | |
| 152Dy | 66 | 86 | 0 | |
| 153Dy | 66 | 87 | -7/2 | |
| 154Dy | 66 | 88 | 0 | |
| 155mDy | 66 | 89 | -11/2 | |
| 155Dy | 66 | 89 | -3/2 | |
| 156Dy | 66 | 90 | 0 | Stable |
| 157m1Dy | 66 | 91 | 9/2 | |
| 157Dy | 66 | 91 | -3/2 | |
| 157m2Dy | 66 | 91 | -11/2 | |
| 158Dy | 66 | 92 | 0 | Stable |
| 159Dy | 66 | 93 | -3/2 | |
| 159mDy | 66 | 93 | -11/2 | |
| 160Dy | 66 | 94 | 0 | Stable |
| 161Dy | 66 | 95 | 5/2 | Stable |
| 162Dy | 66 | 96 | 0 | Stable |
| 163Dy | 66 | 97 | -5/2 | Stable |
| 164Dy | 66 | 98 | 0 | Stable |
| 165mDy | 66 | 99 | -1/2 | |
| 165Dy | 66 | 99 | 7/2 | |
| 166Dy | 66 | 100 | 0 | |
| 167Dy | 66 | 101 | -1/2 | |
| 168Dy | 66 | 102 | 0 | |
| 169Dy | 66 | 103 | -5/2 | |
| 170Dy | 66 | 104 | 0 | |
| 171Dy | 66 | 105 | -7/2 | |
| 172Dy | 66 | 106 | 0 | |
| 173Dy | 66 | 107 | 9/2 |