| Proton | Neutron | Nuclear Spin | Energy State | |
|---|---|---|---|---|
| 77Y | 39 | 38 | 5/2 | |
| 78Y | 39 | 39 | 0 | |
| 78mY | 39 | 39 | 5 | |
| 79Y | 39 | 40 | 5/2 | |
| 80m1Y | 39 | 41 | -1 | |
| 80Y | 39 | 41 | -4 | |
| 80m2Y | 39 | 41 | 2 | |
| 81Y | 39 | 42 | 5/2 | |
| 82m2Y | 39 | 43 | 6 | |
| 82m1Y | 39 | 43 | -4 | |
| 82Y | 39 | 43 | 1 | |
| 83mY | 39 | 44 | -3/2 | |
| 83Y | 39 | 44 | 9/2 | |
| 84mY | 39 | 45 | -5 | |
| 84Y | 39 | 45 | 1 | |
| 85Y | 39 | 46 | -1/2 | |
| 85m2Y | 39 | 46 | -5/2 | |
| 85m1Y | 39 | 46 | 9/2 | |
| 86Y | 39 | 47 | -4 | |
| 86m2Y | 39 | 47 | -7 | |
| 86m1Y | 39 | 47 | 8 | |
| 87mY | 39 | 48 | 9/2 | |
| 87Y | 39 | 48 | -1/2 | |
| 88m2Y | 39 | 49 | 1 | |
| 88m1Y | 39 | 49 | 8 | |
| 88Y | 39 | 49 | -4 | |
| 89Y | 39 | 50 | -1/2 | Stable |
| 89mY | 39 | 50 | 9/2 | |
| 90Y | 39 | 51 | -2 | |
| 90mY | 39 | 51 | 7 | |
| 91Y | 39 | 52 | -1/2 | |
| 91mY | 39 | 52 | 9/2 | |
| 92Y | 39 | 53 | -2 | |
| 93Y | 39 | 54 | -1/2 | |
| 93mY | 39 | 54 | 7/2 | |
| 94Y | 39 | 55 | -2 | |
| 95Y | 39 | 56 | -1/2 | |
| 96Y | 39 | 57 | 0 | |
| 96mY | 39 | 57 | 8 | |
| 97Y | 39 | 58 | -1/2 | |
| 97m2Y | 39 | 58 | -27/2 | |
| 97m1Y | 39 | 58 | 9/2 | |
| 98Y | 39 | 59 | 0 | |
| 98m1Y | 39 | 59 | -2 | |
| 99mY | 39 | 60 | 17/2 | |
| 99Y | 39 | 60 | 5/2 | |
| 101Y | 39 | 62 | 5/2 | |
| 103Y | 39 | 64 | 5/2 | |
| 105Y | 39 | 66 | 5/2 | |
| 107Y | 39 | 68 | 5/2 |