Yb
Ytterbium
Z 70 173.045 g/molLanthanide
| 174Yb | 104 | 173.9389 | -56,944.521 | 32.025% | Stable | 0+ | --- | 1934 |
| 172Yb | 102 | 171.9364 | -59,255.456 | 21.686% | Stable | 0+ | --- | 1934 |
| 173Yb | 103 | 172.9382 | -57,551.234 | 16.103% | Stable | 5/2- | --- | 1934 |
| 171Yb | 101 | 170.9363 | -59,306.818 | 14.086% | Stable | 1/2- | --- | 1934 |
| 176Yb | 106 | 175.9426 | -53,491.322 | 12.995% | Stable | 0+ | β⁻ α→172Er | 1934 |
| 170Yb | 100 | 169.9348 | -60,763.929 | 2.982% | Stable | 0+ | --- | 1938 |
| 168Yb | 98 | 167.9339 | -61,579.87 | 0.123% | Stable | 0+ | α→164Er β⁺ | 1938 |
| 148Yb | 78 | 147.9675 | -30,230.0 | --- | 250.0 ms | 0+ | β⁺→148Tm β⁺p→147Er | --- |
| 149Yb | 79 | 148.9642 | -33,330.0 | --- | 700.0 ms | (1/2+) | β⁺p→148Er(100%) | 2001 |
| 150Yb | 80 | 149.9583 | -38,830.0 | --- | 700.0 ms | 0+ | β⁺→150Tm | 2000 |
| 151Yb | 81 | 150.9554 | -41,540.0 | --- | 1.6 s | (1/2+) | β⁺→151Tm(100%) β⁺p→150Er | 1985 |
| 151mYb | 81 | 150.9562 | -40,800.0 | --- | 1.6 s | (11/2-) | β⁺→151Tm(100%) β⁺p→150Er γ→151Yb | 1986 |
| 151nYb | 81 | 150.9582 | -38,910.0 | --- | 2.6 µs | (19/2-) | γ→151Yb(100%) | 1993 |
| 152Yb | 82 | 151.9503 | -46,270.0 | --- | 3.03 s | 0+ | β⁺→152Tm(100%) | 1982 |
| 152mYb | 82 | 151.9533 | -43,530.0 | --- | 30.0 µs | (10+) | γ→152Yb(100%) | 1995 |
| 153Yb | 83 | 152.9494 | -47,160.0 | --- | 4.2 s | 7/2- | β⁺p→152Er(0.008%) β⁺→153Tm α→149Er | 1977 |
| 153mYb | 83 | 152.9522 | -44,530.0 | --- | 15.0 µs | 27/2- | γ→153Yb(100%) | 1989 |
| 154Yb | 84 | 153.9464 | -49,932.0 | --- | 409.0 ms | 0+ | α→150Er(92.6%) β⁺→154Tm(7.4%) | 1964 |
| 155Yb | 85 | 154.9458 | -50,503.0 | --- | 1.79 s | (7/2-) | α→151Er(89%) β⁺→155Tm(11%) | 1964 |
| 156Yb | 86 | 155.9428 | -53,266.0 | --- | 26.1 s | 0+ | β⁺→156Tm(90%) α→152Er(10%) | 1970 |
| 157Yb | 87 | 156.9427 | -53,420.0 | --- | 38.6 s | 7/2- | β⁺→157Tm(100%) α→153Er | 1970 |
| 158Yb | 88 | 157.9399 | -56,010.0 | --- | 1.49 m | 0+ | β⁺→158Tm(~100%) α→154Er(0.002%) | 1967 |
| 159Yb | 89 | 158.9401 | -55,834.0 | --- | 1.67 m | 5/2- | β⁺→159Tm(100%) | 1975 |
| 160Yb | 90 | 159.9376 | -58,163.0 | --- | 4.8 m | 0+ | β⁺→160Tm(100%) | 1967 |
| 161Yb | 91 | 160.9379 | -57,834.0 | --- | 4.2 m | 3/2- | β⁺→161Tm(100%) | 1974 |
| 162Yb | 92 | 161.9358 | -59,821.0 | --- | 18.87 m | 0+ | β⁺→162Tm(100%) | 1963 |
| 163Yb | 93 | 162.9363 | -59,294.0 | --- | 11.05 m | 3/2- | β⁺→163Tm(100%) | 1967 |
| 164Yb | 94 | 163.9345 | -61,012.0 | --- | 1.26 h | 0+ | EC→164Tm(100%) | 1960 |
| 165Yb | 95 | 164.9353 | -60,295.0 | --- | 9.9 m | 5/2- | β⁺→165Tm(100%) | 1964 |
| 165mYb | 95 | 164.9354 | -60,168.0 | --- | 300.0 ns | 9/2+ | γ→165Yb(100%) | 1980 |
| 166Yb | 96 | 165.9339 | -61,594.0 | --- | 2.36 d | 0+ | EC→166Tm(100%) | 1954 |
| 167Yb | 97 | 166.935 | -60,590.0 | --- | 17.5 m | 5/2- | β⁺→167Tm(100%) | 1954 |
| 167mYb | 97 | 166.9356 | -60,018.0 | --- | --- | 11/2- | γ→167Yb(100%) | 1976 |
| 169Yb | 99 | 168.9352 | -60,375.53 | --- | 32.01 d | 7/2+ | EC→169Tm(100%) | 1946 |
| 169mYb | 99 | 168.9352 | -60,351.33 | --- | 46.0 s | 1/2- | γ→169Yb(100%) | 1949 |
| 170mYb | 100 | 169.9361 | -59,505.47 | --- | 370.0 ns | 4- | γ→170Yb(100%) | 1981 |
| 171mYb | 101 | 170.9364 | -59,211.536 | --- | 5.25 ms | 7/2+ | γ→171Yb(100%) | 1968 |
| 171nYb | 101 | 170.9365 | -59,184.402 | --- | 265.0 ns | 5/2- | γ→171Yb(100%) | 1968 |
| 172mYb | 102 | 171.9381 | -57,705.03 | --- | 3.6 µs | 6- | γ→172Yb(100%) | 1969 |
| 173mYb | 103 | 172.9386 | -57,152.3 | --- | 2.9 µs | 1/2- | γ→173Yb(100%) | 1963 |
| 174mYb | 104 | 173.9405 | -55,426.373 | --- | 830.0 µs | 6+ | γ→174Yb(100%) | 1964 |
| 174nYb | 104 | 173.9408 | -55,179.3 | --- | 256.0 ns | 7- | γ→174Yb(100%) | 2005 |
| 175Yb | 105 | 174.9413 | -54,695.56 | --- | 4.18 d | 7/2- | β⁻→175Lu(100%) | 1945 |
| 175mYb | 105 | 174.9418 | -54,180.69 | --- | 68.2 ms | 1/2- | γ→175Yb(100%) | 1972 |
| 176mYb | 106 | 175.9437 | -52,441.5 | --- | 11.4 s | 8- | β⁻→176Lu(<10%) γ→176Yb | 1967 |
| 177Yb | 107 | 176.9453 | -50,986.4 | --- | 1.91 h | 9/2+ | β⁻→177Lu(100%) | 1945 |
| 177mYb | 107 | 176.9456 | -50,654.9 | --- | 6.41 s | 1/2- | γ→177Yb(100%) | 1962 |
| 178Yb | 108 | 177.9467 | -49,677.0 | --- | 1.23 h | 0+ | β⁻→178Lu(100%) | 1973 |
| 179Yb | 109 | 178.9499 | -46,640.0 | --- | 8.0 m | (1/2-) | β⁻→179Lu(100%) | 1982 |
| 180Yb | 110 | 179.952 | -44,720.0 | --- | 2.4 m | 0+ | β⁻→180Lu(100%) | 1987 |
| 181Yb | 111 | 180.9559 | -41,090.0 | --- | 1.0 m | (3/2-) | β⁻→181Lu | 2000 |
| 182Yb | 112 | 181.9582 | -38,900.0 | --- | 30.0 s | 0+ | β⁻→182Lu | 2012 |
| 183Yb | 113 | 182.9624 | -35,000.0 | --- | 30.0 s | (3/2-) | β⁻→183Lu | 2012 |
| 184Yb | 114 | 183.965 | -32,600.0 | --- | 7.0 s | 0+ | β⁻→184Lu | 2012 |
| 185Yb | 115 | 184.9694 | -28,480.0 | --- | 5.0 s | (9/2-) | β⁻→185Lu | 2012 |