Ir
Iridium
Z 77 192.217 g/molTransition Metal
| 193Ir | 116 | 192.9629 | -34,536.3 | 62.7% | Stable | 3/2+ | --- | 1935 |
| 191Ir | 114 | 190.9606 | -36,708.8 | 37.3% | Stable | 3/2+ | --- | 1935 |
| 163Ir | 86 | 162.9943 | -5,310.0 | --- | --- | (1/2+) | p→162Os | --- |
| 164Ir | 87 | 163.992 | -7,480.0 | --- | 1.0 ms | (2-) | p→163Os α→160Re β⁺→164Os | --- |
| 164mIr | 87 | 163.9922 | -7,220.0 | --- | 70.0 µs | (9+) | α→160Re(4%) p→163Os β⁺→164Os | 2001 |
| 165Ir | 88 | 164.9875 | -11,600.0 | --- | 50.0 ns | (1/2+) | p→164Os α→161Re | --- |
| 165mIr | 88 | 164.9877 | -11,420.0 | --- | 325.0 µs | (11/2-) | p→164Os(88%) α→161Re(12%) | 1997 |
| 166Ir | 89 | 165.9857 | -13,310.0 | --- | 10.5 ms | (2-) | α→162Re(93%) p→165Os(7%) | 1981 |
| 166mIr | 89 | 165.9859 | -13,130.0 | --- | 15.1 ms | (9+) | α→162Re(98.2%) p→165Os(1.8%) | 1996 |
| 167Ir | 90 | 166.9817 | -17,072.0 | --- | 29.3 ms | 1/2+ | α→163Re(43.5%) p→166Os(38.6%) β⁺→167Os | 1981 |
| 167mIr | 90 | 166.9819 | -16,897.0 | --- | 28.5 ms | 11/2- | α→163Re(89%) p→166Os(0.41%) β⁺→167Os | 1995 |
| 168Ir | 91 | 167.98 | -18,670.0 | --- | 230.0 ms | (2-) | α→164Re(100%) β⁺→168Os β⁺p→167Re | 1978 |
| 168mIr | 91 | 167.98 | -18,620.0 | --- | 163.0 ms | (9+) | α→164Re(77%) β⁺→168Os β⁺p→167Re | 1996 |
| 169Ir | 92 | 168.9763 | -22,093.0 | --- | 353.0 ms | (1/2+) | α→165Re(53%) β⁺→169Os | 1978 |
| 169mIr | 92 | 168.9764 | -21,940.0 | --- | 280.0 ms | (11/2-) | α→165Re(79%) β⁺→169Os p→168Os | 1984 |
| 170Ir | 93 | 169.9751 | -23,180.0 | --- | 910.0 ms | (3-) | α→166Re(5.2%) β⁺→170Os | 1977 |
| 170mIr | 93 | 169.9752 | -23,140.0 | --- | 811.0 ms | (8+) | α→166Re(38%) β⁺→170Os γ→170Ir | 1977 |
| 171Ir | 94 | 170.9716 | -26,410.0 | --- | 3.1 s | 1/2+ | α→167Re(15%) β⁺→171Os | 1967 |
| 171mIr | 94 | 170.9718 | -26,250.0 | --- | 1.47 s | (11/2-) | α→167Re(54%) β⁺→171Os p→170Os | 1967 |
| 172Ir | 95 | 171.9706 | -27,380.0 | --- | 4.4 s | (3-) | β⁺→172Os(98%) α→168Re(2%) | 1967 |
| 172mIr | 95 | 171.9708 | -27,240.0 | --- | 2.19 s | (7+) | β⁺→172Os(90.5%) α→168Re(9.5%) | 1967 |
| 173Ir | 96 | 172.9675 | -30,268.0 | --- | 9.0 s | (1/2+) | β⁺→173Os(96.5%) α→169Re(3.5%) | 1967 |
| 173mIr | 96 | 172.9677 | -30,042.0 | --- | 2.2 s | 11/2- | β⁺→173Os(88%) α→169Re(12%) | 1967 |
| 174Ir | 97 | 173.9669 | -30,786.0 | --- | 7.9 s | (2-) | β⁺→174Os(99.5%) α→170Re(0.5%) | 1967 |
| 174mIr | 97 | 173.9671 | -30,662.0 | --- | 4.9 s | (6) | β⁺→174Os(97.5%) α→170Re(2.5%) | 1992 |
| 175Ir | 98 | 174.9641 | -33,395.0 | --- | 9.0 s | (1/2+) | β⁺→175Os(99.15%) α→171Re(0.85%) | 1967 |
| 175mIr | 98 | 174.9642 | -33,350.0 | --- | 33.0 s | (9/2-) | β⁺→175Os γ→175Ir | 1967 |
| 175nIr | 98 | 174.9643 | -33,298.0 | --- | 6.58 µs | (5/2-) | γ→175Ir(100%) | 2019 |
| 176Ir | 99 | 175.9636 | -33,882.0 | --- | 8.7 s | (3+) | β⁺→176Os(96.9%) α→172Re(3.1%) | 1967 |
| 176mIr | 99 | 175.9637 | -33,830.0 | --- | 10.0 s | (7+) | β⁺→176Os γ→176Ir | --- |
| 177Ir | 100 | 176.9613 | -36,047.0 | --- | 29.8 s | 5/2- | β⁺→177Os(~100%) α→173Re(0.06%) | 1967 |
| 177mIr | 100 | 176.9614 | -35,950.0 | --- | --- | (9/2-) | γ→177Ir(100%) | --- |
| 177nIr | 100 | 176.9615 | -35,866.0 | --- | --- | 5/2+ | γ→177Ir(100%) | 1991 |
| 178Ir | 101 | 177.9611 | -36,254.0 | --- | 12.0 s | (3+) | β⁺→178Os(100%) | 1972 |
| 179Ir | 102 | 178.9591 | -38,082.0 | --- | 1.32 m | (5/2-) | β⁺→179Os(100%) | 1992 |
| 180Ir | 103 | 179.9592 | -37,978.0 | --- | 1.5 m | (5+) | β⁺→180Os(100%) | 1972 |
| 181Ir | 104 | 180.9576 | -39,463.0 | --- | 4.9 m | 5/2- | β⁺→181Os(100%) | 1972 |
| 181mIr | 104 | 180.9579 | -39,174.0 | --- | 298.0 ns | 5/2+ | γ→181Ir(100%) | 1992 |
| 181nIr | 104 | 180.958 | -39,097.0 | --- | 126.0 ns | 9/2- | γ→181Ir(100%) | 1992 |
| 182Ir | 105 | 181.9581 | -39,052.0 | --- | 15.0 m | 3+ | β⁺→182Os(100%) | 1961 |
| 182mIr | 105 | 181.9582 | -38,981.0 | --- | 170.0 ns | (5+) | γ→182Ir(100%) | 1990 |
| 182nIr | 105 | 181.9583 | -38,876.0 | --- | 130.0 ns | (6-) | γ→182Ir(100%) | 1990 |
| 183Ir | 106 | 182.9568 | -40,202.0 | --- | 58.0 m | 5/2- | β⁺→183Os(100%) α→179Re | 1961 |
| 184Ir | 107 | 183.9575 | -39,611.0 | --- | 3.09 h | 5- | β⁺→184Os(100%) | 1960 |
| 184mIr | 107 | 183.9577 | -39,385.0 | --- | 470.0 µs | 3+ | γ→184Ir(100%) | 1988 |
| 184nIr | 107 | 183.9578 | -39,283.0 | --- | 350.0 ns | 7+ | γ→184Ir(100%) | 1988 |
| 185Ir | 108 | 184.9567 | -40,336.0 | --- | 14.4 h | 5/2- | β⁺→185Os(100%) | 1958 |
| 185mIr | 108 | 184.9591 | -38,140.0 | --- | 120.0 ns | (23/2) | γ→185Ir(100%) | 1979 |
| 186Ir | 109 | 185.9579 | -39,172.0 | --- | 16.64 h | 5+ | β⁺→186Os(100%) | 1958 |
| 186mIr | 109 | 185.9579 | -39,171.0 | --- | 1.92 h | 2- | β⁺→186Os(75%) γ→186Ir(25%) | 1962 |
| 187Ir | 110 | 186.9575 | -39,549.0 | --- | 10.5 h | 3/2+ | β⁺→187Os(100%) | 1958 |
| 187mIr | 110 | 186.9577 | -39,363.0 | --- | 30.3 ms | 9/2- | γ→187Ir(100%) | 1963 |
| 187nIr | 110 | 186.958 | -39,115.0 | --- | 152.0 ns | 11/2- | γ→187Ir(100%) | 1969 |
| 188Ir | 111 | 187.9588 | -38,345.0 | --- | 1.73 d | 1- | β⁺→188Os(100%) | 1950 |
| 188mIr | 111 | 187.9599 | -37,381.0 | --- | 4.15 ms | (11-) | γ→188Ir(100%) β⁺→188Os | 1971 |
| 189Ir | 112 | 188.9587 | -38,450.0 | --- | 13.2 d | 3/2+ | EC→189Os(100%) | 1955 |
| 189mIr | 112 | 188.9591 | -38,078.0 | --- | 13.3 ms | 11/2- | γ→189Ir(100%) | 1960 |
| 189nIr | 112 | 188.9612 | -36,117.0 | --- | 3.7 ms | 25/2+ | γ→189Ir(100%) | 1975 |
| 190Ir | 113 | 189.9605 | -36,753.6 | --- | 11.78 d | 4- | β⁺→190Os(~100%) β⁺(<0.002%) | 1947 |
| 190mIr | 113 | 189.9606 | -36,727.5 | --- | 1.12 h | 1- | γ→190Ir(100%) | 1964 |
| 190nIr | 113 | 189.9606 | -36,717.4 | --- | --- | 4+ | γ→190Ir(100%) | 1996 |
| 191mIr | 114 | 190.9608 | -36,537.5 | --- | 4.9 s | 11/2- | γ→191Ir(100%) | 1955 |
| 191nIr | 114 | 190.9628 | -34,607.8 | --- | 5.7 s | (31/2+) | γ→191Ir(100%) | 1979 |
| 192Ir | 115 | 191.9626 | -34,835.6 | --- | 73.82 d | 4+ | β⁻→192Pt(95.24%) EC→192Os(4.76%) | 1937 |
| 192mIr | 115 | 191.9627 | -34,778.9 | --- | 1.45 m | 1- | γ→192Ir(~100%) β⁻→192Pt(0.018%) | 1937 |
| 192nIr | 115 | 191.9628 | -34,667.5 | --- | 241.0 y | (11-) | γ→192Ir(100%) | 1959 |
| 193mIr | 116 | 192.963 | -34,456.1 | --- | 10.53 d | 11/2- | γ→193Ir(100%) | 1957 |
| 193nIr | 116 | 192.9654 | -32,257.4 | --- | 124.8 µs | 31/2+ | γ→193Ir(100%) | 2012 |
| 194Ir | 117 | 193.9651 | -32,531.8 | --- | 19.35 h | 1- | β⁻→194Pt(100%) | 1937 |
| 194mIr | 117 | 193.9652 | -32,384.7 | --- | 31.85 ms | 4+ | γ→194Ir(100%) | 1959 |
| 194nIr | 117 | 193.9655 | -32,160.0 | --- | 171.0 d | (11-) | β⁻→194Pt(100%) | 1968 |
| 195Ir | 118 | 194.966 | -31,692.3 | --- | 2.29 h | 3/2+ | β⁻→195Pt(100%) | 1952 |
| 195mIr | 118 | 194.9661 | -31,592.0 | --- | 3.74 h | 11/2- | β⁻→195Pt(100%) γ→195Ir | 1968 |
| 195nIr | 118 | 194.9685 | -29,338.0 | --- | 4.4 µs | (27/2+) | γ→195Ir(100%) | 2011 |
| 196Ir | 119 | 195.9684 | -29,440.0 | --- | 52.0 s | (1-) | β⁻→196Pt(100%) | 1966 |
| 196mIr | 119 | 195.9686 | -29,227.0 | --- | 1.4 h | (11-) | β⁻→196Pt(100%) γ→196Ir | 1959 |
| 197Ir | 120 | 196.9697 | -28,264.0 | --- | 5.8 m | 3/2+ | β⁻→197Pt(100%) | 1952 |
| 197mIr | 120 | 196.9698 | -28,149.0 | --- | 8.9 m | 11/2- | β⁻→197Pt(100%) γ→197Ir | 1976 |
| 197nIr | 120 | 196.9715 | -26,560.0 | --- | 30.0 µs | --- | γ→197Ir(100%) | 2005 |
| 198Ir | 121 | 197.9724 | -25,710.0 | --- | 8.7 s | 1- | β⁻→198Pt(100%) | 1973 |
| 199Ir | 122 | 198.9738 | -24,400.0 | --- | 7.0 s | (3/2+) | β⁻→199Pt(100%) | 1993 |
| 200Ir | 123 | 199.9768 | -21,570.0 | --- | 43.0 s | (2-) | β⁻→200Pt(100%) β⁻n→199Pt | 2008 |
| 201Ir | 124 | 200.9787 | -19,840.0 | --- | 21.0 s | (3/2+) | β⁻→201Pt(100%) | 2008 |
| 202Ir | 125 | 201.9821 | -16,640.0 | --- | 11.0 s | (2-) | β⁻→202Pt(100%) | 2008 |
| 202mIr | 125 | 201.9849 | -14,040.0 | --- | 3.4 µs | --- | γ→202Ir(100%) | 2011 |
| 203Ir | 126 | 202.9846 | -14,370.0 | --- | 7.0 s | (3/2+) | β⁻→203Pt | 2009 |
| 203mIr | 126 | 202.9848 | -14,170.0 | --- | --- | (11/2-) | γ→203Ir β⁻→203Pt | --- |
| 203nIr | 126 | 202.9869 | -12,230.0 | --- | 798.0 ns | (23/2+) | γ→203Ir(100%) | 2011 |
| 204Ir | 127 | 203.9897 | -9,570.0 | --- | 2.0 s | --- | β⁻→204Pt β⁻n→203Pt | 2011 |
| 205Ir | 128 | 204.994 | -5,600.0 | --- | 1.0 s | (3/2+) | β⁻→205Pt β⁻n→204Pt | 2012 |