Tm
Thulium
Z 69 168.934 g/molLanthanide
| 169Tm | 100 | 168.9342 | -61,274.7 | 100.0% | Stable | 1/2+ | --- | 1934 |
| 144Tm | 75 | 143.9762 | -22,160.0 | --- | 2.3 µs | (10+) | p→143Er β⁺→144Er | 2005 |
| 145Tm | 76 | 144.9704 | -27,580.0 | --- | 3.17 µs | (11/2-) | p→144Er(100%) | 1998 |
| 146Tm | 77 | 145.9667 | -31,060.0 | --- | 155.0 ms | (1+) | p→145Er(100%) β⁺→146Er β⁺p→145Ho | 1993 |
| 146mTm | 77 | 145.967 | -30,750.0 | --- | 73.0 ms | (5-) | p→145Er(100%) β⁺→146Er β⁺p→145Ho | 1993 |
| 146nTm | 77 | 145.9671 | -30,620.0 | --- | 200.0 ms | (10+) | p→145Er β⁺→146Er β⁺p→145Ho | 1993 |
| 147Tm | 78 | 146.9614 | -35,974.0 | --- | 580.0 ms | 11/2- | β⁺→147Er(85%) p→146Er(15%) | 1982 |
| 147mTm | 78 | 146.9614 | -35,913.0 | --- | 360.0 µs | 3/2+ | p→146Er(100%) | 1984 |
| 148Tm | 79 | 147.9584 | -38,765.0 | --- | 700.0 ms | (10+) | β⁺→148Er(100%) β⁺p→147Ho | 1982 |
| 149Tm | 80 | 148.9528 | -43,940.0 | --- | 900.0 ms | 11/2- | β⁺→149Er(99.74%) β⁺p→148Ho(0.26%) | 1987 |
| 149mTm | 80 | 148.9529 | -43,840.0 | --- | 500.0 ms | (1/2+) | β⁺→149Er β⁺p→148Ho | --- |
| 150Tm | 81 | 149.9501 | -46,490.0 | --- | 3.0 s | (1+) | β⁺→150Er(100%) | 1982 |
| 150mTm | 81 | 149.9502 | -46,350.0 | --- | 2.2 s | (6-) | β⁺→150Er(98.9%) β⁺p→149Ho(1.1%) | 1981 |
| 150nTm | 81 | 149.951 | -45,680.0 | --- | 5.2 ms | (10+) | γ→150Tm(100%) | 1984 |
| 151Tm | 82 | 150.9455 | -50,772.0 | --- | 4.17 s | (11/2-) | β⁺→151Er(100%) | 1982 |
| 151mTm | 82 | 150.9456 | -50,679.0 | --- | 6.6 s | (1/2+) | β⁺→151Er(100%) | 1987 |
| 151nTm | 82 | 150.9483 | -48,116.0 | --- | 451.0 ns | (27/2-) | γ→151Tm(100%) | 1982 |
| 152Tm | 83 | 151.9445 | -51,720.0 | --- | 8.0 s | (2-) | β⁺→152Er(100%) | 1980 |
| 152mTm | 83 | 151.9444 | -51,820.0 | --- | 5.2 s | (9+) | β⁺→152Er(100%) | 1980 |
| 152nTm | 83 | 151.9471 | -49,270.0 | --- | 301.0 ns | (17+) | γ→152Tm(100%) | 1986 |
| 153Tm | 84 | 152.9421 | -53,973.0 | --- | 1.48 s | (11/2-) | α→149Ho(91%) β⁺→153Er(9%) | 1964 |
| 153mTm | 84 | 152.9421 | -53,930.0 | --- | 2.5 s | (1/2+) | α→149Ho(92%) β⁺→153Er(8%) | 1988 |
| 154Tm | 85 | 153.9416 | -54,427.0 | --- | 8.1 s | (2-) | α→150Ho(54%) β⁺→154Er(46%) | 1964 |
| 154mTm | 85 | 153.9417 | -54,350.0 | --- | 3.3 s | (9+) | α→150Ho(58%) β⁺→154Er(42%) γ→154Tm | 1964 |
| 155Tm | 86 | 154.9392 | -56,626.0 | --- | 21.6 s | 11/2- | β⁺→155Er(99.17%) α→151Ho(0.83%) | 1971 |
| 155mTm | 86 | 154.9393 | -56,585.0 | --- | 45.0 s | 1/2+ | β⁺→155Er(100%) α→151Ho | 1990 |
| 156Tm | 87 | 155.939 | -56,834.0 | --- | 1.4 m | 2- | β⁺→156Er(~100%) α→152Ho(0.064%) | 1971 |
| 156mTm | 87 | 155.9394 | -56,430.0 | --- | --- | (11-) | γ→156Tm(100%) | 1985 |
| 157Tm | 88 | 156.937 | -58,709.0 | --- | 3.63 m | 1/2+ | β⁺→157Er(~100%) α→153Ho(0.001%) | 1974 |
| 157mTm | 88 | 156.9371 | -58,610.0 | --- | 1.6 s | (7/2-) | β⁺→157Er γ→157Tm | 2008 |
| 158Tm | 89 | 157.937 | -58,703.0 | --- | 3.98 m | 2- | β⁺→158Er(100%) | 1970 |
| 158mTm | 89 | 157.9371 | -58,600.0 | --- | --- | (5-) | γ→158Tm EC→158Er | 1981 |
| 159Tm | 90 | 158.935 | -60,570.0 | --- | 9.13 m | 5/2+ | β⁺→159Er(100%) | 1971 |
| 160Tm | 91 | 159.9353 | -60,300.0 | --- | 9.4 m | 1- | β⁺→160Er(100%) | 1970 |
| 160mTm | 91 | 159.9353 | -60,230.0 | --- | 1.24 m | (5+) | γ→160Tm(85%) β⁺→160Er(15%) | 1983 |
| 160nTm | 91 | 159.9355 | -60,090.0 | --- | --- | (8) | γ→160Tm(100%) | 1986 |
| 161Tm | 92 | 160.9335 | -61,899.0 | --- | 30.2 m | 7/2+ | β⁺→161Er(100%) | 1959 |
| 161mTm | 92 | 160.9336 | -61,891.0 | --- | 5.0 m | (1/2+) | β⁺→161Er γ→161Tm | 1981 |
| 161nTm | 92 | 160.9336 | -61,821.0 | --- | 110.0 ns | 7/2- | γ→161Tm(100%) | 1981 |
| 162Tm | 93 | 161.934 | -61,477.0 | --- | 21.7 m | 1- | β⁺→162Er(100%) | 1963 |
| 162mTm | 93 | 161.9341 | -61,350.0 | --- | 24.3 s | 5+ | γ→162Tm(81%) β⁺→162Er(19%) | 1974 |
| 163Tm | 94 | 162.9327 | -62,728.0 | --- | 1.81 h | 1/2+ | β⁺→163Er(100%) | 1959 |
| 163mTm | 94 | 162.9328 | -62,641.0 | --- | 380.0 ns | (7/2-) | γ→163Tm(100%) | 1975 |
| 164Tm | 95 | 163.9335 | -61,909.0 | --- | 2.0 m | 1+ | β⁺→164Er(100%) EC→164Er(61%) β⁺(39%) | 1960 |
| 164mTm | 95 | 163.9336 | -61,889.0 | --- | 5.1 m | 6- | γ→164Tm(80%) β⁺→164Er(20%) | 1971 |
| 165Tm | 96 | 164.9324 | -62,930.0 | --- | 1.25 d | 1/2+ | β⁺→165Er(100%) | 1953 |
| 165mTm | 96 | 164.9325 | -62,849.6 | --- | 80.0 µs | 7/2+ | γ→165Tm(100%) | 1967 |
| 165nTm | 96 | 164.9326 | -62,769.5 | --- | 9.0 µs | 7/2- | γ→165Tm(100%) | 1968 |
| 166Tm | 97 | 165.9336 | -61,886.0 | --- | 7.7 h | 2+ | β⁺→166Er(100%) | 1948 |
| 166mTm | 97 | 165.9337 | -61,764.0 | --- | 348.0 ms | (6-) | γ→166Tm(100%) | 1996 |
| 166nTm | 97 | 165.9338 | -61,642.0 | --- | 2.0 µs | (6-) | γ→166Tm(100%) | 1995 |
| 167Tm | 98 | 166.9329 | -62,543.1 | --- | 9.25 d | 1/2+ | EC→167Er(100%) | 1948 |
| 167mTm | 98 | 166.933 | -62,363.6 | --- | 1.16 µs | 7/2+ | γ→167Tm(100%) | 1964 |
| 167nTm | 98 | 166.9332 | -62,250.3 | --- | 900.0 ns | 7/2- | γ→167Tm(100%) | 1965 |
| 168Tm | 99 | 167.9342 | -61,312.4 | --- | 93.1 d | 3+ | β⁺→168Er(~100%) β⁻→168Yb(0.01%) | 1949 |
| 169mTm | 100 | 168.9346 | -60,958.6 | --- | 659.9 ns | 7/2+ | γ→169Tm(100%) | 1950 |
| 170Tm | 101 | 169.9358 | -59,795.3 | --- | 128.6 d | 1- | β⁻→170Yb(99.869%) EC→170Er(0.131%) | 1936 |
| 170mTm | 101 | 169.936 | -59,612.1 | --- | 4.12 µs | 3+ | γ→170Tm(100%) | 1967 |
| 171Tm | 102 | 170.9364 | -59,210.3 | --- | 1.92 y | 1/2+ | β⁻→171Yb(100%) | 1948 |
| 171mTm | 102 | 170.9369 | -58,785.3 | --- | 2.6 µs | 7/2- | γ→171Tm(100%) | 1948 |
| 171nTm | 102 | 170.9382 | -57,535.9 | --- | 1.7 µs | 19/2+ | γ→171Tm(100%) | 2009 |
| 172Tm | 103 | 171.9384 | -57,374.0 | --- | 2.65 d | 2- | β⁻→172Yb(100%) | 1956 |
| 172mTm | 103 | 171.9389 | -56,898.0 | --- | 132.0 µs | (6+) | γ→172Tm(100%) | 2008 |
| 173Tm | 104 | 172.9396 | -56,256.0 | --- | 8.24 h | (1/2+) | β⁻→173Yb(100%) | 1961 |
| 173mTm | 104 | 172.9399 | -55,938.0 | --- | 10.7 µs | 7/2- | γ→173Tm(100%) | 1972 |
| 173nTm | 104 | 172.9417 | -54,350.0 | --- | 250.0 ns | 19/2- | γ→173Tm(100%) | 2012 |
| 174Tm | 105 | 173.9422 | -53,860.0 | --- | 5.4 m | 4- | β⁻→174Yb(100%) | 1960 |
| 174mTm | 105 | 173.9424 | -53,610.0 | --- | 2.29 s | 0+ | γ→174Tm(100%) β⁻→174Yb(<1.5%) | 2006 |
| 174nTm | 105 | 173.9444 | -51,770.0 | --- | 106.0 µs | 14- | γ→174Tm(100%) | 2013 |
| 175Tm | 106 | 174.9438 | -52,310.0 | --- | 15.2 m | (1/2+) | β⁻→175Yb(100%) | 1961 |
| 175mTm | 106 | 174.9443 | -51,870.0 | --- | 319.0 ns | 7/2- | γ→175Tm(100%) | 2012 |
| 175nTm | 106 | 174.9455 | -50,790.0 | --- | 21.0 µs | 23/2+ | γ→175Tm(100%) | 2012 |
| 176Tm | 107 | 175.947 | -49,370.0 | --- | 1.85 m | (4+) | β⁻→176Yb(100%) | 1961 |
| 177Tm | 108 | 176.9489 | -47,570.0 | --- | 1.58 m | (1/2+) | β⁻→177Yb(100%) | 1989 |
| 177mTm | 108 | 176.949 | -47,470.0 | --- | 1.28 m | (7/2-) | β⁻→177Yb(100%) | 1989 |
| 178Tm | 109 | 177.9525 | -44,240.0 | --- | 10.0 s | (1-) | β⁻→178Yb β⁻n→177Yb | 2008 |
| 179Tm | 110 | 178.955 | -41,900.0 | --- | 18.0 s | (1/2+) | β⁻→179Yb β⁻n→178Yb | 2012 |
| 180Tm | 111 | 179.959 | -38,170.0 | --- | 3.0 s | --- | β⁻→180Yb β⁻n→179Yb | 2012 |
| 181Tm | 112 | 180.962 | -35,440.0 | --- | 7.0 s | (1/2+) | β⁻→181Yb β⁻n→180Yb | 2012 |
| 182Tm | 113 | 181.9662 | -31,490.0 | --- | --- | --- | β⁻→182Yb β⁻n→181Yb | --- |