锆的同位素

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主要的锆同位素
同位素 衰变
丰度 半衰期 (t1/2) 方式 能量
MeV
产物
88Zr 人造 83.4  ε 0.670 88Y
89Zr 人造 78.360 小时 β+ 1.811 89Y
90Zr 51.47% 稳定,带50粒中子
91Zr 11.23% 稳定,带51粒中子
92Zr 17.16% 稳定,带52粒中子
93Zr 痕量 1.61×106  β 0.060 93mNb
β 0.091 93Nb
94Zr 17.36% 稳定,带54粒中子
95Zr 人造 64.032  β 1.126 95Nb
96Zr 2.78% 2.34×1019  ββ 3.356 96Mo
β[1] 0.164 96Nb
标准原子质量英语Standard atomic weight (Ar, 标准)
←Y39 Nb41

原子量:91.224(2))有从77Zr至114Zr共38个同位素,其中有5个同位素存在于自然界,包括稳定90Zr、91Zr、92Zr、94Zr以及半衰期极长的放射性同位素96Zr。[3]它会通过双β衰变衰变成96Mo,半衰期2.34×1019年,[3]亦可通过单β衰变衰变成96Nb,部分半衰期[2.27+0.53
−0.36
(随机误差)± 0.27(系统误差)]×1020年。[1]锆第二稳定的放射性同位素是半衰期161万年的93Zr,其它半衰期超过一天的同位素包括88Zr(83.4天)、95Zr(64.032天)、89Zr(78.36小时)。锆最稳定的同核异构体89mZr,半衰期4.16分钟。[3]

90Zr轻的放射性同位素通常会通过正电子发射衰变为钇的同位素,而更重的放射性同位素则主要通过β衰变衰变成铌的同位素[3]

图表[编辑]

Template:Isotopes table |- | 77Zr | style="text-align:right" | 40 | style="text-align:right" | 37 | 76.96608(43)# | 100# μs | | | 3/2−# | | |- | 78Zr | style="text-align:right" | 40 | style="text-align:right" | 38 | 77.95615(43)# | 50# ms
[>200 ns] | | | 0+ | | |- | rowspan=2|79Zr | rowspan=2 style="text-align:right" | 40 | rowspan=2 style="text-align:right" | 39 | rowspan=2|78.94916(43)# | rowspan=2|56(30) ms | β+, p | 78Sr | rowspan=2|5/2+# | rowspan=2| | rowspan=2| |- | β+ | 79Y |- | 80Zr | style="text-align:right" | 40 | style="text-align:right" | 40 | 79.9404(16) | 4.6(6) s | β+ | 80Y | 0+ | | |- | rowspan=2|81Zr | rowspan=2 style="text-align:right" | 40 | rowspan=2 style="text-align:right" | 41 | rowspan=2|80.93721(18) | rowspan=2|5.5(4) s | β+ (>99.9%) | 81Y | rowspan=2|(3/2-)# | rowspan=2| | rowspan=2| |- | β+, p (<.1%) | 80Sr |- | 82Zr | style="text-align:right" | 40 | style="text-align:right" | 42 | 81.93109(24)# | 32(5) s | β+ | 82Y | 0+ | | |- | rowspan=2|83Zr | rowspan=2 style="text-align:right" | 40 | rowspan=2 style="text-align:right" | 43 | rowspan=2|82.92865(10) | rowspan=2|41.6(24) s | β+ (>99.9%) | 83Y | rowspan=2|(1/2-)# | rowspan=2| | rowspan=2| |- | β+, p (<.1%) | 82Sr |- | 84Zr | style="text-align:right" | 40 | style="text-align:right" | 44 | 83.92325(21)# | 25.9(7) min | β+ | 84Y | 0+ | | |- | 85Zr | style="text-align:right" | 40 | style="text-align:right" | 45 | 84.92147(11) | 7.86(4) min | β+ | 85Y | 7/2+ | | |- | rowspan=2 style="text-indent:1em" | 85mZr | rowspan=2 colspan="3" style="text-indent:2em" | 292.2(3) keV | rowspan=2|10.9(3) s | IT (92%) | 85Zr | rowspan=2|(1/2-) | rowspan=2| | rowspan=2| |- | β+ (8%) | 85Y |- | 86Zr | style="text-align:right" | 40 | style="text-align:right" | 46 | 85.91647(3) | 16.5(1) h | β+ | 86Y | 0+ | | |- | 87Zr | style="text-align:right" | 40 | style="text-align:right" | 47 | 86.914816(9) | 1.68(1) h | β+ | 87Y | (9/2)+ | | |- | style="text-indent:1em" | 87mZr | colspan="3" style="text-indent:2em" | 335.84(19) keV | 14.0(2) s | IT | 87Zr | (1/2)- | | |- | 88Zr | style="text-align:right" | 40 | style="text-align:right" | 48 | 87.910227(11) | 83.4(3) d | ε | 88Y | 0+ | | |- | 89Zr | style="text-align:right" | 40 | style="text-align:right" | 49 | 88.908890(4) | 78.41(12) h | β+ | 89Y | 9/2+ | | |- | rowspan=2 style="text-indent:1em" | 89mZr | rowspan=2 colspan="3" style="text-indent:2em" | 587.82(10) keV | rowspan=2|4.161(17) min | IT (93.77%) | 89Zr | rowspan=2|1/2- | rowspan=2| | rowspan=2| |- | β+ (6.23%) | 89Y |- | 90
Zr
[n 1] | style="text-align:right" | 40 | style="text-align:right" | 50 | 89.9047044(25) | colspan=3 align=center|稳定 | 0+ | 0.5145(40) | |- | style="text-indent:1em" | 90m1Zr | colspan="3" style="text-indent:2em" | 2319.000(10) keV | 809.2(20) ms | IT | 90Zr | 5- | | |- | style="text-indent:1em" | 90m2Zr | colspan="3" style="text-indent:2em" | 3589.419(16) keV | 131(4) ns | | | 8+ | | |- | 91Zr[n 1] | style="text-align:right" | 40 | style="text-align:right" | 51 | 90.9056458(25) | colspan=3 align=center|稳定 | 5/2+ | 0.1122(5) | |- | style="text-indent:1em" | 91mZr | colspan="3" style="text-indent:2em" | 3167.3(4) keV | 4.35(14) µs | | | (21/2+) | | |- | 92Zr[n 1] | style="text-align:right" | 40 | style="text-align:right" | 52 | 91.9050408(25) | colspan=3 align=center|稳定 | 0+ | 0.1715(8) | |- | 93Zr[n 2] | style="text-align:right" | 40 | style="text-align:right" | 53 | 92.9064760(25) | 1.53(10)×106 y | β | 93Nb | 5/2+ | | |- | 94Zr[n 1] | style="text-align:right" | 40 | style="text-align:right" | 54 | 93.9063152(26) | colspan=3 align=center|观测上稳定[n 3] | 0+ | 0.1738(28) | |- | 95Zr[n 1] | style="text-align:right" | 40 | style="text-align:right" | 55 | 94.9080426(26) | 64.032(6) d | β | 95Nb | 5/2+ | | |- | rowspan=2| 96Zr[n 4][n 1][3] | rowspan=2 style="text-align:right" | 40 | rowspan=2 style="text-align:right" | 56 | rowspan=2 | 95.9082734(30) | rowspan=2 | 23.4×1018 y | ββ | 96Mo | rowspan=2 | 0+ | rowspan=2 | 0.0280(9) | rowspan=2 | |- | β[1] | 96Nb |- | 97Zr | style="text-align:right" | 40 | style="text-align:right" | 57 | 96.9109531(30) | 16.744(11) h | β | 97mNb | 1/2+ | | |- | 98Zr | style="text-align:right" | 40 | style="text-align:right" | 58 | 97.912735(21) | 30.7(4) s | β | 98Nb | 0+ | | |- | 99Zr | style="text-align:right" | 40 | style="text-align:right" | 59 | 98.916512(22) | 2.1(1) s | β | 99mNb | 1/2+ | | |- | 100Zr | style="text-align:right" | 40 | style="text-align:right" | 60 | 99.91776(4) | 7.1(4) s | β | 100Nb | 0+ | | |- | 101Zr | style="text-align:right" | 40 | style="text-align:right" | 61 | 100.92114(3) | 2.3(1) s | β | 101Nb | 3/2+ | | |- | 102Zr | style="text-align:right" | 40 | style="text-align:right" | 62 | 101.92298(5) | 2.9(2) s | β | 102Nb | 0+ | | |- | 103Zr | style="text-align:right" | 40 | style="text-align:right" | 63 | 102.92660(12) | 1.3(1) s | β | 103Nb | (5/2-) | | |- | 104Zr | style="text-align:right" | 40 | style="text-align:right" | 64 | 103.92878(43)# | 1.2(3) s | β | 104Nb | 0+ | | |- | rowspan=2|105Zr | rowspan=2 style="text-align:right" | 40 | rowspan=2 style="text-align:right" | 65 | rowspan=2|104.93305(43)# | rowspan=2|0.6(1) s | β (>99.9%) | 105Nb | rowspan=2| | rowspan=2| | rowspan=2| |- | β, n (<.1%) | 104Nb |- | 106Zr | style="text-align:right" | 40 | style="text-align:right" | 66 | 105.93591(54)# | 200# ms
[>300 ns] | β | 106Nb | 0+ | | |- | 107Zr | style="text-align:right" | 40 | style="text-align:right" | 67 | 106.94075(32)# | 150# ms
[>300 ns] | β | 107Nb | | | |- | 108Zr | style="text-align:right" | 40 | style="text-align:right" | 68 | 107.94396(64)# | 80# ms
[>300 ns] | β | 108Nb | 0+ | | |- | 109Zr | style="text-align:right" | 40 | style="text-align:right" | 69 | 108.94924(54)# | 60# ms
[>300 ns] | | | | | |- | 110Zr | style="text-align:right" | 40 | style="text-align:right" | 70 | 109.95287(86)# | 30# ms
[>300 ns] | | | 0+ | | |- | 111Zr[4] | style="text-align:right" | 40 | style="text-align:right" | 71 | | | | | | | |- | 112Zr[4] | style="text-align:right" | 40 | style="text-align:right" | 72 | | | | | 0+ | | |- | 113Zr[5] | style="text-align:right" | 40 | style="text-align:right" | 73 | | | | | | | |- | 114Zr[6] | style="text-align:right" | 40 | style="text-align:right" | 74 | | | | | 0+ | | |}

  1. 1.0 1.1 1.2 1.3 1.4 1.5 裂变产物
  2. 长寿命裂变产物
  3. 理论上可以ββ94Mo,半衰期超过1.1×1017
  4. 原始放射性同位素
同位素列表
钇的同位素 锆的同位素 铌的同位素

参考文献[编辑]

  1. 1.0 1.1 1.2 Barabash, A. S.; Evseev, S.; Filosofov, D.; Gavrilyuk, Yu. M.; Gangapshev, A. M.; Gorshkov, N.; Kazalov, V. V.; Kazartsev, S.; Khussainov, T.; Kuzminov, V. V.; Lubashevskiy, A.; Ponomarev, D. V.; Rozov, S.; Temerbulatova, N.; Vasilyev, S.; Yakushev, E. A.; Yumatov, V. I. First observation of single beta decay of 96Zr. 2026-05-19. arXiv:2605.18344可免费查阅 [nucl-ex]. 
  2. Meija, Juris; et al. Atomic weights of the elements 2013 (IUPAC Technical Report). Pure and Applied Chemistry. 2016, 88 (3): 265–91. doi:10.1515/pac-2015-0305. 
  3. 3.0 3.1 3.2 3.3 3.4 Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. The NUBASE2020 evaluation of nuclear properties (PDF). Chinese Physics C. 2021, 45 (3): 030001. doi:10.1088/1674-1137/abddae (English). 
  4. 4.0 4.1 Ohnishi, Tetsuya; Kubo, Toshiyuki; Kusaka, Kensuke; et al. Identification of 45 New Neutron-Rich Isotopes Produced by In-Flight Fission of a 238U Beam at 345 MeV/nucleon. J. Phys. Soc. Jpn. (Physical Society of Japan). 2010, 79 (7): 073201. Bibcode:2010JPSJ...79g3201T. arXiv:1006.0305可免费查阅. doi:10.1143/JPSJ.79.073201可免费查阅. 
  5. Shimizu, Yohei; et al. Observation of New Neutron-rich Isotopes among Fission Fragments from In-flight Fission of 345MeV=nucleon 238U: Search for New Isotopes Conducted Concurrently with Decay Measurement Campaigns. Journal of the Physical Society of Japan. 2018, 87 (1): 014203. Bibcode:2018JPSJ...87a4203S. doi:10.7566/JPSJ.87.014203可免费查阅. 
  6. Sumikama, T.; et al. Observation of new neutron-rich isotopes in the vicinity of Zr110. Physical Review C. 2021, 103 (1): 014614 [2024-08-11]. Bibcode:2021PhRvC.103a4614S. S2CID 234019083. doi:10.1103/PhysRevC.103.014614. hdl:10261/260248可免费查阅. (原始内容存档于2022-03-05).