Dy
Dysprosium
Z 66 162.5 g/molLanthanide
| 164Dy | 98 | 163.9292 | -65,967.6 | 28.26% | Stable | 0+ | --- | 1934 |
| 162Dy | 96 | 161.9268 | -68,181.2 | 25.475% | Stable | 0+ | --- | 1934 |
| 163Dy | 97 | 162.9287 | -66,380.9 | 24.896% | Stable | 5/2- | --- | 1934 |
| 161Dy | 95 | 160.9269 | -68,055.5 | 18.889% | Stable | 5/2+ | --- | 1934 |
| 160Dy | 94 | 159.9252 | -69,672.4 | 2.329% | Stable | 0+ | --- | 1938 |
| 158Dy | 92 | 157.9244 | -70,407.2 | 0.095% | Stable | 0+ | α→154Gd β⁺ | 1938 |
| 156Dy | 90 | 155.9243 | -70,529.4 | 0.056% | Stable | 0+ | α→152Gd β⁺ | 1948 |
| 138Dy | 72 | 137.9625 | -34,930.0 | --- | 200.0 ms | 0+ | β⁺→138Tb β⁺p→137Gd | --- |
| 139Dy | 73 | 138.9595 | -37,700.0 | --- | 600.0 ms | (7/2+) | β⁺→139Tb(89%) β⁺p→138Gd(11%) | 1999 |
| 140Dy | 74 | 139.954 | -42,830.0 | --- | 700.0 ms | 0+ | β⁺→140Tb β⁺p→139Gd | 2002 |
| 140mDy | 74 | 139.9563 | -40,660.0 | --- | 7.0 µs | 8- | γ→140Dy(100%) | 2002 |
| 141Dy | 75 | 140.9513 | -45,380.0 | --- | 900.0 ms | (9/2-) | β⁺→141Tb(100%) β⁺p→140Gd | 1984 |
| 142Dy | 76 | 141.9462 | -50,120.0 | --- | 2.3 s | 0+ | β⁺→142Tb(99.94%) β⁺(90%) EC→142Tb(10%) β⁺p→141Gd(0.06%) | 1986 |
| 143Dy | 77 | 142.944 | -52,169.0 | --- | 5.6 s | (1/2+) | β⁺→143Tb(100%) β⁺p→142Gd | 1983 |
| 143mDy | 77 | 142.9443 | -51,858.0 | --- | 3.0 s | (11/2-) | β⁺→143Tb(100%) β⁺p→142Gd | 2003 |
| 143nDy | 77 | 142.9444 | -51,763.0 | --- | 1.2 µs | (7/2-) | γ→143Dy(100%) | 2005 |
| 144Dy | 78 | 143.9393 | -56,570.0 | --- | 9.1 s | 0+ | β⁺→144Tb(100%) β⁺p→143Gd | 1986 |
| 145Dy | 79 | 144.9375 | -58,243.0 | --- | 9.5 s | (1/2+) | β⁺→145Tb(100%) β⁺p→144Gd | 1982 |
| 145mDy | 79 | 144.9376 | -58,125.0 | --- | 14.1 s | (11/2-) | β⁺→145Tb(50%) β⁺p→144Gd(50%) | 1982 |
| 146Dy | 80 | 145.9328 | -62,555.0 | --- | 33.2 s | 0+ | β⁺→146Tb(100%) | 1981 |
| 146mDy | 80 | 145.936 | -59,621.0 | --- | 150.0 ms | 10+ | γ→146Dy(100%) | 1982 |
| 147Dy | 81 | 146.9311 | -64,196.0 | --- | 1.12 m | (1/2+) | β⁺→147Tb(99.95%) β⁺p→146Gd(0.05%) | 1975 |
| 147mDy | 81 | 146.9319 | -63,446.0 | --- | 55.2 s | (11/2-) | β⁺→147Tb(68.9%) γ→147Dy(31.1%) | 1976 |
| 147nDy | 81 | 146.9347 | -60,789.0 | --- | 400.0 ns | (27/2-) | γ→147Dy(100%) | 1985 |
| 148Dy | 82 | 147.9272 | -67,859.0 | --- | 3.3 m | 0+ | β⁺→148Tb(100%) | 1974 |
| 148mDy | 82 | 147.9303 | -64,940.0 | --- | 471.0 ns | 10+ | γ→148Dy(100%) | 1978 |
| 149Dy | 83 | 148.9273 | -67,694.0 | --- | 4.2 m | 7/2- | β⁺→149Tb(100%) | 1958 |
| 149mDy | 83 | 148.9302 | -65,033.0 | --- | 490.0 ms | 27/2- | γ→149Dy(99.3%) β⁺→149Tb(0.7%) | 1976 |
| 150Dy | 84 | 149.9256 | -69,310.0 | --- | 7.17 m | 0+ | β⁺→150Tb(66.4%) α→146Gd(33.6%) | 1959 |
| 151Dy | 85 | 150.9262 | -68,752.0 | --- | 17.9 m | 7/2- | β⁺→151Tb(94.4%) α→147Gd(5.6%) | 1959 |
| 152Dy | 86 | 151.9247 | -70,118.0 | --- | 2.38 h | 0+ | EC→152Tb(99.9%) α→148Gd(0.1%) | 1958 |
| 153Dy | 87 | 152.9258 | -69,143.0 | --- | 6.4 h | 7/2- | β⁺→153Tb(99.991%) α→149Gd(0.009%) | 1958 |
| 154Dy | 88 | 153.9244 | -70,394.0 | --- | 3.0 My | 0+ | α→150Gd(100%) β⁺ | 1961 |
| 155Dy | 89 | 154.9258 | -69,156.0 | --- | 9.9 h | 3/2- | β⁺→155Tb(100%) | 1958 |
| 155mDy | 89 | 154.926 | -68,922.0 | --- | 6.0 µs | 11/2- | γ→155Dy(100%) | 1970 |
| 157Dy | 91 | 156.9255 | -69,425.0 | --- | 8.14 h | 3/2- | β⁺→157Tb(100%) | 1953 |
| 157mDy | 91 | 156.9256 | -69,263.0 | --- | 1.3 µs | 9/2+ | γ→157Dy(100%) | 1974 |
| 157nDy | 91 | 156.9257 | -69,226.0 | --- | 21.6 ms | 11/2- | γ→157Dy(100%) | 1970 |
| 159Dy | 93 | 158.9257 | -69,167.2 | --- | 144.4 d | 3/2- | EC→159Tb(100%) | 1951 |
| 159mDy | 93 | 158.9261 | -68,814.4 | --- | 122.0 µs | 11/2- | γ→159Dy(100%) | 1965 |
| 161mDy | 95 | 160.9275 | -67,569.9 | --- | 760.0 ns | 11/2- | γ→161Dy(100%) | 2012 |
| 162mDy | 96 | 161.9292 | -65,993.1 | --- | 8.3 µs | 8+ | γ→162Dy(100%) | 2011 |
| 165Dy | 99 | 164.9317 | -63,612.3 | --- | 2.33 h | 7/2+ | β⁻→165Ho(100%) | 1935 |
| 165mDy | 99 | 164.9318 | -63,504.1 | --- | 1.26 m | 1/2- | γ→165Dy(97.76%) β⁻→165Ho(2.24%) | 1963 |
| 166Dy | 100 | 165.9328 | -62,584.5 | --- | 3.4 d | 0+ | β⁻→166Ho(100%) | 1949 |
| 167Dy | 101 | 166.9357 | -59,911.0 | --- | 6.2 m | (1/2-) | β⁻→167Ho(100%) | 1960 |
| 168Dy | 102 | 167.9371 | -58,560.0 | --- | 8.7 m | 0+ | β⁻→168Ho(100%) | 1982 |
| 168mDy | 102 | 167.9386 | -57,180.0 | --- | 570.0 ns | (4-) | γ→168Dy(100%) | 2019 |
| 169Dy | 103 | 168.9403 | -55,600.0 | --- | 39.0 s | (5/2-) | β⁻→169Ho(100%) | 1990 |
| 169mDy | 103 | 168.9405 | -55,430.0 | --- | 1.26 µs | (1/2-) | γ→169Dy(100%) | 2019 |
| 170Dy | 104 | 169.9423 | -53,710.0 | --- | 54.9 s | 0+ | β⁻→170Ho(100%) | 2010 |
| 170mDy | 104 | 169.9441 | -52,070.0 | --- | 990.0 ns | (6+) | γ→170Dy(100%) | 2016 |
| 171Dy | 105 | 170.9463 | -50,010.0 | --- | 4.07 s | (7/2-) | β⁻→171Ho(100%) | 2012 |
| 172Dy | 106 | 171.9487 | -47,760.0 | --- | 3.4 s | 0+ | β⁻→172Ho(100%) | 2012 |
| 172mDy | 106 | 171.9501 | -46,480.0 | --- | 710.0 ms | (8-) | γ→172Dy(81%) β⁻→172Ho(19%) | 2016 |
| 173Dy | 107 | 172.953 | -43,740.0 | --- | 1.43 s | (9/2+) | β⁻→173Ho(100%) β⁻n→172Ho | 2012 |
| 174Dy | 108 | 173.9558 | -41,130.0 | --- | 1.0 s | 0+ | β⁻→174Ho β⁻n→173Ho | 2012 |
| 175Dy | 109 | 174.9606 | -36,730.0 | --- | 390.0 ms | (1/2-) | β⁻→175Ho β⁻n→174Ho | 2018 |
| 176Dy | 110 | 175.9639 | -33,610.0 | --- | 440.0 ms | 0+ | β⁻→176Ho β⁻n→175Ho | 2018 |