Danh sách đồng vị
Chu kỳ 6 > Iridi, Z=77

| Đồng vị | Kỳ bán rã | Năng lượng  phân rã, MeV | Spin /  Chẵn lẻ | Phân rã, % | Tỷ lệ, % |
| --- | --- | --- | --- | --- | --- |
| 165Ir | 300 µs |  | (11/2−) | p = 87, α = 13 |   |
| 166Ir | 10,5 ms | 6,7 (α) | (2−) | α = 93, p = 7 |   |
| 166m1Ir | 15,1 ms |  | (9+) | α = 98,2, p = 1,8 |   |
| 167Ir | 5 ms | 6,54 |  | α = ? |   |
| 168Ir | 161 ms | 6,41 |  | α = ? |   |
| 169Ir | 0,4 s | 6,28 (α), 8,68 (K/β+), 0,76 (p) |  | α ≈ 100, K/β+ = ?, p = ? |   |
| 170Ir | 1,05 s | 10,68 (K/β+), 6,179 (α) |  | K/β+ = 25 sysα = 75 sys |   |
| 171Ir | 1,5 s | 6,159 (α), 8,2 (K/β+), 0,39 (p) |  | α ≈ 100, K/β+ = ?, p = ? |   |
| 172Ir | 4,4 s | 5,991 (α), 9,8 (K/β+) | (3+) | α ≈ 2, K/β+ = 98 |   |
| 172m1Ir | 2,0 s | 6,130 (α), 9,939 (K/β+) | (7+) | α = 23, K/β+ = 77 |   |
| 173Ir | 9,0 s | 7,4 (K/β+), 5,84 (α) | (3/2+, 5/2+) | K/β+ > 93, α < 7 |   |
| 173m1Ir | 2,20 s | 7,4 (K/β+), 5,84 (α) | (11/2−) | K/β+ = 88, α = 12 |   |
| 174Ir | 9 s | 9,0 (K/β+), 5,624 (α) | (3+) | K/β+ = 99,53, α = 0,47 |   |
| 174m1Ir | 4,9 s | 9,193 (K/β+), 5,817 (α) | (7+) | K/β+ = 97,5, α = 2,5 |   |
| 175Ir | 9 s | 6,6 (K/β+), 5,62 (α) | (5/2−) | K/β+ = 99,15, α = 0,85 |   |
| 176Ir | 8 s | 8,0 (K/β+), 5,24 (α) |  | K/β+ = 97,9, α = 2,1 |   |
| 177Ir | 30 s | 5,7 (K/β+), 5,13 (α) | (5/2−) | K/β+ = 99,94, α = 0,06 |   |
| 178Ir | 12 s | 7,2 |  | K/β+ = 100 |   |
| 179Ir | 79 s | 4,9 | (5/2) − | K/β+ = 100 |   |
| 180Ir | 1,5 min | 6,4 |  | K/β+ = 100 |   |
| 181Ir | 4,90 min | 4,07 | (5/2) − | K/β+ = 100 |   |
| 182Ir | 15 min | 5,61 | (5+) | K/β+ = 100 |   |
| 183Ir | 58 min | 3,45 | 5/2− | K/β+ = 100 |   |
| 184Ir | 3,09 h | 4,6 | 5− | K/β+ = 100 |   |
| 185Ir | 14,4 h | 2,37 | 5/2− | K/β+ = 100 |   |
| 186Ir | 16,64 h | 3,831 | 5+ | K/β+ = 100 |   |
| 186m1Ir | 1,90 h | 3,831 (K/β+), 0 (IT) | 2− | K/β+ ≈ 75, IT ≈ 25 |   |
| 187Ir | 10,5 h | 1,502 | 3/2+ | K/β+ = 100 |   |
| 187m1Ir | 30,3 ms | 0,186 | 9/2− | IT = 100 |   |
| 188Ir | 41,5 h | 2,809 | 1− | K/β+ = 100 |   |
| 188m1Ir | 4,2 ms |  |  |  |   |
| 189Ir | 13,2 d | 0,532 | 3/2+ | K = 100 |   |
| 189m1Ir | 13,3 ms | 0,372 | 11/2− | IT = 100 |   |
| 189m2Ir | 3,7 ms | 2,333 | (25/2) + | IT = 100 |   |
| 190Ir | 11,78 d | 2,0 | (4−) | K/β+ = 100, β− < 0,002 |   |
| 190m1Ir | 1,2 h | 0,026 | (1−) | IT = 100 |   |
| 190m2Ir | 3,25 h | 2,149 (K/β+), 0,140 (IT) | (11) − | K/β+ = 94,4, IT = 5,6 |   |
| 191Ir | Bền |  | 3/2+ |   | 37,3 |
| 191m1Ir | 4,94 s | 0,171 | 11/2− | IT = 100 |   |
| 191m2Ir | 5,5 s | 2,047 |  | IT = 100 |   |
| 192Ir | 73,831 d | 1,46 (β−), 1,046 (K) | 4(+) | β− = 95,24, K = 4,76 |   |
| 192m1Ir | 1,45 min | 0,057 (IT), 1,517 (β−) | 1(−) | IT = 99,982, β− = 0,018 |   |
| 192m2Ir | 241 a | 0,155 | (9) | IT = 100 |   |
| 193Ir | Bền |  | 3/2+ |   | 62,7 |
| 193m1Ir | 10,53 d | 0,080 | 11/2− | IT = 100 |   |
| 194Ir | 19,28 h | 2,247 | 1− | β− = 100 |   |
| 194m1Ir | 31,85 ms | 0,147 | (4+) | IT = 100 |   |
| 194m2Ir | 171 d | 2,437 | (10,11) | β− = 100 |   |
| 195Ir | 2,5 h | 1,12 | 3/2+ | β− = 100 |   |
| 195m1Ir | 3,8 h | 1,22 (β−), 0,10 (IT) | 11/2− | β− = 95, IT = 5 |   |
| 196Ir | 52 s | 3,21 | (0−) | β− = 100 |   |
| 196m1Ir | 1,40 h | 3,62 (β−), 0,41 (IT) | (10,11−) | β− ≈ 100, IT < 0,3 |   |
| 197Ir | 5,8 min | 2,155 | 3/2+ | β− = 100 |   |
| 197m1Ir | 8,9 min | 2,27 (β−), 0,115 (IT) | 11/2− | β− = 99,75, IT = 0,25 |   |
| 198Ir | 8 s | 4,1 |  | β− = 100 |   |