Lu
Lutetium
Z 71 174.967 g/molLanthanide
| 175Lu | 104 | 174.9408 | -55,165.7 | 97.401% | Stable | 7/2+ | --- | 1934 |
| 176Lu | 105 | 175.9427 | -53,382.3 | 2.599% | 37.01 Gy | 7- | β⁻→176Hf(~100%) β⁺→176Yb(0.45%) | 1935 |
| 150Lu | 79 | 149.9734 | -24,770.0 | --- | 45.0 ms | (5-) | p→149Yb(100%) β⁺→150Yb | 1993 |
| 150mLu | 79 | 149.9734 | -24,750.0 | --- | 40.0 µs | (8+) | p→149Yb(100%) | 1998 |
| 151Lu | 80 | 150.9675 | -30,300.0 | --- | 78.4 ms | 11/2- | p→150Yb β⁺→151Yb | 1982 |
| 151mLu | 80 | 150.9675 | -30,240.0 | --- | 16.0 µs | 3/2+ | p→150Yb(100%) | 1998 |
| 152Lu | 81 | 151.9641 | -33,420.0 | --- | 650.0 ms | (4-) | β⁺→152Yb(85%) β⁺p→151Tm(15%) | 1987 |
| 153Lu | 82 | 152.9588 | -38,380.0 | --- | 900.0 ms | 11/2- | α→149Tm β⁺→153Yb | 1989 |
| 153mLu | 82 | 152.9589 | -38,300.0 | --- | 1.0 s | 1/2+ | α→149Tm β⁺→153Yb γ→153Lu | 1997 |
| 153nLu | 82 | 152.9615 | -35,880.0 | --- | --- | 23/2- | γ→153Lu(100%) | 1993 |
| 154Lu | 83 | 153.9574 | -39,670.0 | --- | 1.0 s | (2-) | β⁺→154Yb α→150Tm | 1981 |
| 154mLu | 83 | 153.9575 | -39,600.0 | --- | 1.12 s | (9+) | β⁺→154Yb(100%) β⁺p→153Tm β⁺α→150Er α→150Tm | 1981 |
| 154nLu | 83 | 153.9603 | -36,950.0 | --- | 35.0 µs | (17+) | γ→154Lu(100%) | 1990 |
| 155Lu | 84 | 154.9543 | -42,545.0 | --- | 68.0 ms | 11/2- | α→151Tm(90%) β⁺→155Yb(10%) | 1965 |
| 155mLu | 84 | 154.9543 | -42,524.0 | --- | 138.0 ms | 1/2+ | α→151Tm(76%) β⁺→155Yb(24%) | 1967 |
| 155nLu | 84 | 154.9562 | -40,765.0 | --- | 2.69 ms | (25/2-) | α→151Tm(100%) γ→155Lu | 1981 |
| 156Lu | 85 | 155.9531 | -43,700.0 | --- | 494.0 ms | (2-) | α→152Tm(100%) β⁺→156Yb | 1965 |
| 156mLu | 85 | 155.9531 | -43,680.0 | --- | 198.0 ms | 10+ | α→152Tm(100%) β⁺→156Yb | 1979 |
| 156nLu | 85 | 155.9559 | -41,090.0 | --- | 179.0 ns | 19- | γ→156Lu(100%) | 2018 |
| 157Lu | 86 | 156.9501 | -46,440.0 | --- | 7.7 s | (1/2+) | β⁺→157Yb α→153Tm | 1977 |
| 157mLu | 86 | 156.9502 | -46,419.0 | --- | 4.79 s | (11/2-) | β⁺→157Yb(92.3%) α→153Tm(7.7%) | 1972 |
| 158Lu | 87 | 157.9493 | -47,212.0 | --- | 10.6 s | (2-) | β⁺→158Yb(99.09%) α→154Tm(0.91%) | 1979 |
| 159Lu | 88 | 158.9466 | -49,710.0 | --- | 12.1 s | 1/2+ | β⁺→159Yb(100%) α→155Tm | 1980 |
| 159mLu | 88 | 158.9467 | -49,610.0 | --- | 10.0 s | (11/2-) | β⁺→159Yb γ→159Lu α→155Tm | --- |
| 160Lu | 89 | 159.946 | -50,270.0 | --- | 36.1 s | (2-) | β⁺→160Yb(100%) α→156Tm | 1979 |
| 160mLu | 89 | 159.946 | -50,270.0 | --- | 40.0 s | --- | β⁺→160Yb(100%) α→156Tm | 1980 |
| 161Lu | 90 | 160.9436 | -52,562.0 | --- | 1.28 m | 1/2+ | β⁺→161Yb(100%) | 1973 |
| 161mLu | 90 | 160.9438 | -52,380.0 | --- | 7.3 ms | (9/2-) | γ→161Lu(100%) β⁺→161Yb | 1973 |
| 162Lu | 91 | 161.9433 | -52,830.0 | --- | 1.37 m | 1- | β⁺→162Yb(100%) | 1978 |
| 162mLu | 91 | 161.9434 | -52,710.0 | --- | 1.5 m | (4-) | β⁺→162Yb(100%) γ→162Lu | 1980 |
| 162nLu | 91 | 161.9436 | -52,530.0 | --- | 1.9 m | (9-) | β⁺→162Yb γ→162Lu | 1980 |
| 163Lu | 92 | 162.9412 | -54,791.0 | --- | 3.97 m | 1/2+ | β⁺→163Yb(100%) | 1979 |
| 164Lu | 93 | 163.9413 | -54,642.0 | --- | 3.14 m | 1- | β⁺→164Yb(100%) | 1977 |
| 165Lu | 94 | 164.9394 | -56,442.0 | --- | 10.74 m | 1/2+ | β⁺→165Yb(100%) | 1973 |
| 166Lu | 95 | 165.9399 | -56,021.0 | --- | 2.65 m | 6- | β⁺→166Yb(100%) | 1969 |
| 166mLu | 95 | 165.9399 | -55,990.0 | --- | 1.41 m | 3- | β⁺→166Yb(58%) γ→166Lu(42%) | 1974 |
| 166nLu | 95 | 165.9399 | -55,980.0 | --- | 2.12 m | 0- | β⁺→166Yb(90%) γ→166Lu | 1974 |
| 167Lu | 96 | 166.9382 | -57,530.0 | --- | 51.5 m | 7/2+ | β⁺→167Yb(100%) | 1958 |
| 167mLu | 96 | 166.9383 | -57,480.0 | --- | --- | 1/2+ | γ→167Lu β⁺→167Yb | 1998 |
| 168Lu | 97 | 167.9387 | -57,070.0 | --- | 5.5 m | 6- | β⁺→168Yb(100%) | 1960 |
| 168mLu | 97 | 167.9389 | -56,908.0 | --- | 6.7 m | 3+ | β⁺→168Yb(100%) γ→168Lu | 1960 |
| 169Lu | 98 | 168.9376 | -58,083.0 | --- | 1.42 d | 7/2+ | β⁺→169Yb(100%) | 1955 |
| 169mLu | 98 | 168.9377 | -58,054.0 | --- | 2.67 m | 1/2- | γ→169Lu(100%) | 1965 |
| 170Lu | 99 | 169.9385 | -57,306.0 | --- | 2.01 d | 0+ | β⁺→170Yb(100%) | 1951 |
| 170mLu | 99 | 169.9386 | -57,213.0 | --- | 670.0 ms | 4- | γ→170Lu(100%) | 1965 |
| 171Lu | 100 | 170.9379 | -57,828.5 | --- | 8.25 d | 7/2+ | β⁺→171Yb(100%) | 1951 |
| 171mLu | 100 | 170.938 | -57,757.4 | --- | 1.32 m | 1/2- | γ→171Lu(100%) | 1965 |
| 172Lu | 101 | 171.9391 | -56,736.1 | --- | 6.7 d | 4- | β⁺→172Yb(100%) | 1951 |
| 172mLu | 101 | 171.9391 | -56,694.2 | --- | 3.7 m | 1- | γ→172Lu(100%) β⁺→172Yb | 1962 |
| 172nLu | 101 | 171.9392 | -56,670.3 | --- | 332.0 ns | (1+) | γ→172Lu(100%) | 1965 |
| 173Lu | 102 | 172.9389 | -56,881.0 | --- | 1.37 y | 7/2+ | EC→173Yb(100%) | 1951 |
| 173mLu | 102 | 172.9391 | -56,757.3 | --- | 74.2 µs | 5/2- | γ→173Lu(100%) | 1962 |
| 174Lu | 103 | 173.9403 | -55,570.3 | --- | 3.31 y | 1- | β⁺→174Yb(100%) | 1951 |
| 174mLu | 103 | 173.9405 | -55,399.5 | --- | 142.0 d | 6- | γ→174Lu(99.38%) EC→174Yb(0.62%) | 1960 |
| 174nLu | 103 | 173.9406 | -55,329.5 | --- | 395.0 ns | 3+ | γ→174Lu(100%) | 1980 |
| 175mLu | 104 | 174.9412 | -54,812.2 | --- | 1.49 µs | 5/2- | γ→175Lu(100%) | 1965 |
| 175nLu | 104 | 174.9423 | -53,773.3 | --- | 984.0 µs | 19/2+ | γ→175Lu(100%) | 1998 |
| 176mLu | 105 | 175.9428 | -53,259.5 | --- | 3.66 h | 1- | β⁻→176Hf(~100%) EC→176Yb(0.095%) | 1935 |
| 176nLu | 105 | 175.9443 | -51,867.8 | --- | 312.0 ns | 12+ | γ→176Lu(100%) | 2000 |
| 177Lu | 106 | 176.9438 | -52,383.9 | --- | 6.64 d | 7/2+ | β⁻→177Hf(100%) | 1945 |
| 177mLu | 106 | 176.9439 | -52,233.5 | --- | 130.1 ns | 9/2- | γ→177Lu(100%) | 1949 |
| 177nLu | 106 | 176.9444 | -51,814.2 | --- | 155.0 µs | 1/2+ | γ→177Lu(100%) | 1965 |
| 178Lu | 107 | 177.946 | -50,337.9 | --- | 28.4 m | 1+ | β⁻→178Hf(100%) | 1957 |
| 178mLu | 107 | 177.9461 | -50,214.0 | --- | 23.1 m | 9- | β⁻→178Hf(100%) | 1951 |
| 179Lu | 108 | 178.9473 | -49,059.0 | --- | 4.59 h | 7/2+ | β⁻→179Hf(100%) | 1961 |
| 179mLu | 108 | 178.948 | -48,467.0 | --- | 3.1 ms | 1/2+ | γ→179Lu(100%) | 1982 |
| 180Lu | 109 | 179.9499 | -46,680.0 | --- | 5.7 m | 5+ | β⁻→180Hf(100%) | 1971 |
| 180mLu | 109 | 179.9499 | -46,670.0 | --- | --- | 3- | γ→180Lu β⁻→180Hf | 1995 |
| 180nLu | 109 | 179.9506 | -46,060.0 | --- | --- | (9-) | γ→180Lu(100%) | 2001 |
| 181Lu | 110 | 180.9519 | -44,800.0 | --- | 3.5 m | (7/2+) | β⁻→181Hf(100%) | 1982 |
| 182Lu | 111 | 181.9552 | -41,770.0 | --- | 2.0 m | (1-) | β⁻→182Hf(100%) | 1982 |
| 183Lu | 112 | 182.9574 | -39,720.0 | --- | 58.0 s | (7/2+) | β⁻→183Hf(100%) | 1983 |
| 184Lu | 113 | 183.961 | -36,300.0 | --- | 20.0 s | (3+) | β⁻→184Hf(100%) | 1989 |
| 185Lu | 114 | 184.9635 | -33,960.0 | --- | 20.0 s | (7/2+) | β⁻→185Hf | 2009 |
| 186Lu | 115 | 185.9675 | -30,320.0 | --- | 6.0 s | --- | β⁻→186Hf β⁻n→185Hf | 2012 |
| 187Lu | 116 | 186.9702 | -27,770.0 | --- | 7.0 s | (7/2+) | β⁻→187Hf | 2012 |
| 188Lu | 117 | 187.9744 | -23,820.0 | --- | 1.0 s | --- | β⁻→188Hf β⁻n→187Hf | 2012 |