| Proton | Neutron | Nuclear Spin | Energy State | |
|---|---|---|---|---|
| 155Ta | 73 | 82 | -11/2 | |
| 156Ta | 73 | 83 | -2 | |
| 156mTa | 73 | 83 | 9 | |
| 157m2Ta | 73 | 84 | -25/2 | |
| 157m1Ta | 73 | 84 | -11/2 | |
| 157Ta | 73 | 84 | 1/2 | |
| 158Ta | 73 | 85 | -2 | |
| 158mTa | 73 | 85 | 9 | |
| 159mTa | 73 | 86 | -11/2 | |
| 159Ta | 73 | 86 | 1/2 | |
| 160Ta | 73 | 87 | -2 | |
| 160mTa | 73 | 87 | 9 | |
| 161mTa | 73 | 88 | -11/2 | |
| 161Ta | 73 | 88 | 1/2 | |
| 162Ta | 73 | 89 | 3 | |
| 163Ta | 73 | 90 | 1/2 | |
| 164Ta | 73 | 91 | 3 | |
| 165Ta | 73 | 92 | -5/2 | |
| 165mTa | 73 | 92 | -9/2 | |
| 166Ta | 73 | 93 | 2 | |
| 167Ta | 73 | 94 | 3/2 | |
| 168Ta | 73 | 95 | 3 | |
| 169Ta | 73 | 96 | 5/2 | |
| 170Ta | 73 | 97 | 3 | |
| 171Ta | 73 | 98 | -5/2 | |
| 172Ta | 73 | 99 | 3 | |
| 173Ta | 73 | 100 | -5/2 | |
| 174Ta | 73 | 101 | 3 | |
| 175Ta | 73 | 102 | 7/2 | |
| 176m3Ta | 73 | 103 | -20 | |
| 176m2Ta | 73 | 103 | -14 | |
| 176Ta | 73 | 103 | -1 | |
| 177m4Ta | 73 | 104 | -49/2 | |
| 177m2Ta | 73 | 104 | -5/2 | |
| 177m3Ta | 73 | 104 | -21/2 | |
| 177m1Ta | 73 | 104 | -9/2 | |
| 177Ta | 73 | 104 | 7/2 | |
| 178m2Ta | 73 | 105 | -15 | |
| 178m3Ta | 73 | 105 | -21 | |
| 178m1Ta | 73 | 105 | -7 | |
| 178Ta | 73 | 105 | 1 | |
| 179m3Ta | 73 | 106 | -21/2 | |
| 179m5Ta | 73 | 106 | -23/2 | |
| 179m1Ta | 73 | 106 | -9/2 | |
| 179m6Ta | 73 | 106 | 37/2 | |
| 179m2Ta | 73 | 106 | 1/2 | |
| 179m4Ta | 73 | 106 | 25/2 | |
| 179Ta | 73 | 106 | 7/2 | |
| 180m2Ta | 73 | 107 | -15 | |
| 180m1Ta | 73 | 107 | -9 | Stable |
| 180m3Ta | 73 | 107 | -22 | |
| 180Ta | 73 | 107 | 1 | |
| 181Ta | 73 | 108 | 7/2 | Stable |
| 181m3Ta | 73 | 108 | -21/2 | |
| 181m4Ta | 73 | 108 | -29/2 | |
| 181m1Ta | 73 | 108 | -9/2 | |
| 181m2Ta | 73 | 108 | 1/2 | |
| 182Ta | 73 | 109 | -3 | |
| 182m2Ta | 73 | 109 | -10 | |
| 182m1Ta | 73 | 109 | 5 | |
| 183mTa | 73 | 110 | -9/2 | |
| 183Ta | 73 | 110 | 7/2 | |
| 184Ta | 73 | 111 | -5 | |
| 185mTa | 73 | 112 | -21/2 | |
| 185Ta | 73 | 112 | 7/2 | |
| 186Ta | 73 | 113 | -2 | |
| 187Ta | 73 | 114 | 7/2 | |
| 188Ta | 73 | 115 | 3 | |
| 189Ta | 73 | 116 | 7/2 | |
| 190Ta | 73 | 117 | 0 |