Table
| nuclide symbol |
Z(p) | N(n) | isotopic mass (u) |
half-life | decay mode(s) |
daughter isotope(s) |
nuclear spin |
representative isotopic composition (mole fraction) |
range of natural variation (mole fraction) |
|---|---|---|---|---|---|---|---|---|---|
| excitation energy | |||||||||
| 148Yb | 70 | 78 | 147.96742(64)# | 250# ms | β+ | 148Tm | 0+ | ||
| 149Yb | 70 | 79 | 148.96404(54)# | 0.7(2) s | β+ | 149Tm | (1/2+,3/2+) | ||
| 150Yb | 70 | 80 | 149.95842(43)# | 700# ms | β+ | 150Tm | 0+ | ||
| 151Yb | 70 | 81 | 150.95540(32) | 1.6(5) s | β+ | 151Tm | (1/2+) | ||
| β+, p (rare) | 150Er | ||||||||
| 151m1Yb | 750(100)# keV | 1.6(5) s | β+ | 151Tm | (11/2-) | ||||
| β+, p (rare) | 150Er | ||||||||
| 151m2Yb | 1790(500)# keV | 2.6(7) µs | 19/2-# | ||||||
| 151m3Yb | 2450(500)# keV | 20(1) µs | 27/2-# | ||||||
| 152Yb | 70 | 82 | 151.95029(22) | 3.04(6) s | β+ | 152Tm | 0+ | ||
| β+, p (rare) | 151Er | ||||||||
| 153Yb | 70 | 83 | 152.94948(21)# | 4.2(2) s | α (50%) | 149Er | 7/2-# | ||
| β+ (50%) | 153Tm | ||||||||
| β+, p (.008%) | 152Er | ||||||||
| 153mYb | 2700(100) keV | 15(1) µs | (27/2-) | ||||||
| 154Yb | 70 | 84 | 153.946394(19) | 0.409(2) s | α (92.8%) | 150Er | 0+ | ||
| β+ (7.119%) | 154Tm | ||||||||
| 155Yb | 70 | 85 | 154.945782(18) | 1.793(19) s | α (89%) | 151Er | (7/2-) | ||
| β+ (11%) | 155Tm | ||||||||
| 156Yb | 70 | 86 | 155.942818(12) | 26.1(7) s | β+ (90%) | 156Tm | 0+ | ||
| α (10%) | 152Er | ||||||||
| 157Yb | 70 | 87 | 156.942628(11) | 38.6(10) s | β+ (99.5%) | 157Tm | 7/2- | ||
| α (.5%) | 153Er | ||||||||
| 158Yb | 70 | 88 | 157.939866(9) | 1.49(13) min | β+ (99.99%) | 158Tm | 0+ | ||
| α (.0021%) | 154Er | ||||||||
| 159Yb | 70 | 89 | 158.94005(2) | 1.67(9) min | β+ | 159Tm | 5/2(-) | ||
| 160Yb | 70 | 90 | 159.937552(18) | 4.8(2) min | β+ | 160Tm | 0+ | ||
| 161Yb | 70 | 91 | 160.937902(17) | 4.2(2) min | β+ | 161Tm | 3/2- | ||
| 162Yb | 70 | 92 | 161.935768(17) | 18.87(19) min | β+ | 162Tm | 0+ | ||
| 163Yb | 70 | 93 | 162.936334(17) | 11.05(25) min | β+ | 163Tm | 3/2- | ||
| 164Yb | 70 | 94 | 163.934489(17) | 75.8(17) min | EC | 164Tm | 0+ | ||
| 165Yb | 70 | 95 | 164.93528(3) | 9.9(3) min | β+ | 165Tm | 5/2- | ||
| 166Yb | 70 | 96 | 165.933882(9) | 56.7(1) h | EC | 166Tm | 0+ | ||
| 167Yb | 70 | 97 | 166.934950(5) | 17.5(2) min | β+ | 167Tm | 5/2- | ||
| 168Yb | 70 | 98 | 167.933897(5) | Observationally Stable | 0+ | 0.0013(1) | |||
| 169Yb | 70 | 99 | 168.935190(5) | 32.026(5) d | EC | 169Tm | 7/2+ | ||
| 169mYb | 24.199(3) keV | 46(2) s | IT | 169Yb | 1/2- | ||||
| 170Yb | 70 | 100 | 169.9347618(26) | Observationally Stable | 0+ | 0.0304(15) | |||
| 170mYb | 1258.46(14) keV | 370(15) ns | 4- | ||||||
| 171Yb | 70 | 101 | 170.9363258(26) | Observationally Stable | 1/2- | 0.1428(57) | |||
| 171m1Yb | 95.282(2) keV | 5.25(24) ms | IT | 171Yb | 7/2+ | ||||
| 171m2Yb | 122.416(2) keV | 265(20) ns | 5/2- | ||||||
| 172Yb | 70 | 102 | 171.9363815(26) | Observationally Stable | 0+ | 0.2183(67) | |||
| 173Yb | 70 | 103 | 172.9382108(26) | Observationally Stable | 5/2- | 0.1613(27) | |||
| 173mYb | 398.9(5) keV | 2.9(1) µs | 1/2- | ||||||
| 174Yb | 70 | 104 | 173.9388621(26) | Observationally Stable | 0+ | 0.3183(92) | |||
| 175Yb | 70 | 105 | 174.9412765(26) | 4.185(1) d | β- | 175Lu | 7/2- | ||
| 175mYb | 514.865(4) keV | 68.2(3) ms | 1/2- | ||||||
| 176Yb | 70 | 106 | 175.9425717(28) | Observationally Stable | 0+ | 0.1276(41) | |||
| 176mYb | 1050.0(3) keV | 11.4(3) s | (8)- | ||||||
| 177Yb | 70 | 107 | 176.9452608(28) | 1.911(3) h | β- | 177Lu | (9/2+) | ||
| 177mYb | 331.5(3) keV | 6.41(2) s | IT | 177Yb | (1/2-) | ||||
| 178Yb | 70 | 108 | 177.946647(11) | 74(3) min | β- | 178Lu | 0+ | ||
| 179Yb | 70 | 109 | 178.95017(32)# | 8.0(4) min | β- | 179Lu | (1/2-) | ||
| 180Yb | 70 | 110 | 179.95233(43)# | 2.4(5) min | β- | 180Lu | 0+ | ||
| 181Yb | 70 | 111 | 180.95615(43)# | 1# min | β- | 181Lu | 3/2-# | ||
Read more about this topic: Isotopes Of Ytterbium
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