铌的同位素
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标准原子质量 (Ar, 标准) |
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铌(原子量:92.90637(1))共有58个同位素,其中有1个同位素是稳定的。
图表[编辑]
符号 | Z( p ) |
N( n ) |
同位素质量(u) | 半衰期 | 衰变 方式[2][n 1] |
衰变 产物[n 2] |
原子核 自旋 |
相对丰度 (莫耳分率) |
相对丰度 的变化量 (莫耳分率) |
---|---|---|---|---|---|---|---|---|---|
激发能量 | |||||||||
81 Nb |
41 | 40 | 80.94903(161)# | <44 ns | β+, p | 80Y | 3/2-# | ||
p | 80Zr | ||||||||
β+ | 81Zr | ||||||||
82Nb | 41 | 41 | 81.94313(32)# | 51(5) ms | β+ | 82Zr | 0+ | ||
83Nb | 41 | 42 | 82.93671(34) | 4.1(3) s | β+ | 83Zr | (5/2+) | ||
84Nb | 41 | 43 | 83.93357(32)# | 9.8(9) s | β+ (>99.9%) | 84Zr | 3+ | ||
β+, p (<.1%) | 83Y | ||||||||
84mNb | 338(10) keV | 103(19) ns | (5-) | ||||||
85Nb | 41 | 44 | 84.92791(24) | 20.9(7) s | β+ | 85Zr | (9/2+) | ||
85mNb | 759.0(10) keV | 12(5) s | (1/2-) | ||||||
86Nb | 41 | 45 | 85.92504(9) | 88(1) s | β+ | 86Zr | (6+) | ||
86mNb | 250(160)# keV | 56(8) s | β+ | 86Zr | high | ||||
87Nb | 41 | 46 | 86.92036(7) | 3.75(9) min | β+ | 87Zr | (1/2-) | ||
87mNb | 3.84(14) keV | 2.6(1) min | β+ | 87Zr | (9/2+)# | ||||
88Nb | 41 | 47 | 87.91833(11) | 14.55(6) min | β+ | 88Zr | (8+) | ||
88mNb | 40(140) keV | 7.8(1) min | β+ | 88Zr | (4-) | ||||
89Nb | 41 | 48 | 88.913418(29) | 2.03(7) h | β+ | 89Zr | (9/2+) | ||
89mNb | 0(30)# keV | 1.10(3) h | β+ | 89Zr | (1/2)- | ||||
90Nb | 41 | 49 | 89.911265(5) | 14.60(5) h | β+ | 90Zr | 8+ | ||
90m1Nb | 122.370(22) keV | 63(2) µs | 6+ | ||||||
90m2Nb | 124.67(25) keV | 18.81(6) s | IT | 90Nb | 4- | ||||
90m3Nb | 171.10(10) keV | <1 µs | 7+ | ||||||
90m4Nb | 382.01(25) keV | 6.19(8) ms | 1+ | ||||||
90m5Nb | 1880.21(20) keV | 472(13) ns | (11-) | ||||||
91Nb | 41 | 50 | 90.906996(4) | 680(130) a | ε (99.98%) | 91Zr | 9/2+ | ||
β+ (.013%) | 91Zr | ||||||||
91m1Nb | 104.60(5) keV | 60.86(22) d | IT (93%) | 91Nb | 1/2- | ||||
ε (7%) | 91Zr | ||||||||
β+ (.0028%) | 91Zr | ||||||||
91m2Nb | 2034.35(19) keV | 3.76(12) µs | (17/2-) | ||||||
92Nb | 41 | 51 | 91.907194(3) | 3.47(24)×107 a | β+ (99.95%) | 92Zr | (7)+ | ||
β− (.05%) | 92Mo | ||||||||
92m1Nb | 135.5(4) keV | 10.15(2) d | β+ | 92Zr | (2)+ | ||||
92m2Nb | 225.7(4) keV | 5.9(2) µs | (2)- | ||||||
92m3Nb | 2203.3(4) keV | 167(4) ns | (11-) | ||||||
93 Nb |
41 | 52 | 92.9063781(26) | 稳定 | 9/2+ | 1.0000 | |||
93mNb | 30.77(2) keV | 16.13(14) a | IT | 93Nb | 1/2- | ||||
94Nb | 41 | 53 | 93.9072839(26) | 2.03(16)×104 a | β− | 94Mo | (6)+ | ||
94mNb | 40.902(12) keV | 6.263(4) min | IT (99.5%) | 94Nb | 3+ | ||||
β− (.5%) | 94Mo | ||||||||
95Nb | 41 | 54 | 94.9068358(21) | 34.991(6) d | β− | 95Mo | 9/2+ | ||
95mNb | 235.690(20) keV | 3.61(3) d | IT (94.4%) | 95Nb | 1/2- | ||||
β− (5.6%) | 95Mo | ||||||||
96Nb | 41 | 55 | 95.908101(4) | 23.35(5) h | β− | 96Mo | 6+ | ||
97Nb | 41 | 56 | 96.9080986(27) | 72.1(7) min | β− | 97Mo | 9/2+ | ||
97mNb | 743.35(3) keV | 52.7(18) s | IT | 97Nb | 1/2- | ||||
98Nb | 41 | 57 | 97.910328(6) | 2.86(6) s | β− | 98Mo | 1+ | ||
98mNb | 84(4) keV | 51.3(4) min | β− (99.9%) | 98Mo | (5+) | ||||
IT (.1%) | 98Nb | ||||||||
99Nb | 41 | 58 | 98.911618(14) | 15.0(2) s | β− | 99Mo | 9/2+ | ||
99mNb | 365.29(14) keV | 2.6(2) min | β− (96.2%) | 99Mo | 1/2- | ||||
IT (3.8%) | 99Nb | ||||||||
100Nb | 41 | 59 | 99.914182(28) | 1.5(2) s | β− | 100Mo | 1+ | ||
100mNb | 470(40) keV | 2.99(11) s | β− | 100Mo | (4+,5+) | ||||
101Nb | 41 | 60 | 100.915252(20) | 7.1(3) s | β− | 101Mo | (5/2#)+ | ||
102Nb | 41 | 61 | 101.91804(4) | 1.3(2) s | β− | 102Mo | 1+ | ||
102mNb | 130(50) keV | 4.3(4) s | β− | 102Mo | high | ||||
103Nb | 41 | 62 | 102.91914(7) | 1.5(2) s | β− | 103Mo | (5/2+) | ||
104Nb | 41 | 63 | 103.92246(11) | 4.9(3) s | β− (99.94%) | 104Mo | (1+) | ||
β−, n (.06%) | 103Mo | ||||||||
104mNb | 220(120) keV | 940(40) ms | β− (99.95%) | 104Mo | high | ||||
β−, n (.05%) | 103Mo | ||||||||
105Nb | 41 | 64 | 104.92394(11) | 2.95(6) s | β− (98.3%) | 105Mo | (5/2+)# | ||
β−, n (1.7%) | 104Mo | ||||||||
106Nb | 41 | 65 | 105.92797(21)# | 920(40) ms | β− (95.5%) | 106Mo | 2+# | ||
β−, n (4.5%) | 105Mo | ||||||||
107Nb | 41 | 66 | 106.93031(43)# | 300(9) ms | β− (94%) | 107Mo | 5/2+# | ||
β−, n (6%) | 106Mo | ||||||||
108Nb | 41 | 67 | 107.93484(32)# | 0.193(17) s | β− (93.8%) | 108Mo | (2+) | ||
β−, n (6.2%) | 107Mo | ||||||||
109Nb | 41 | 68 | 108.93763(54)# | 190(30) ms | β− (69%) | 109Mo | 5/2+# | ||
β−, n (69%) | 108Mo | ||||||||
110Nb | 41 | 69 | 109.94244(54)# | 170(20) ms | β− (60%) | 110Mo | 2+# | ||
β−, n (40%) | 109Mo | ||||||||
111Nb | 41 | 70 | 110.94565(54)# | 80# ms [>300 ns] | 5/2+# | ||||
112Nb | 41 | 71 | 111.95083(75)# | 60# ms [>300 ns] | 2+# | ||||
113Nb | 41 | 72 | 112.95470(86)# | 30# ms [>300 ns] | 5/2+# | ||||
114Nb[3] | 41 | 73 | |||||||
115Nb[3] | 41 | 74 | |||||||
116Nb[4] | 41 | 75 | |||||||
117Nb[5] | 41 | 76 |
备注:画上#号的数据代表没有经过实验的证明,只是理论推测而已,而用括号括起来的代表数据不确定性。
← | 同位素列表 | → |
锆的同位素 | 铌的同位素 | 钼的同位素 |
注释[编辑]
- ^ Abbreviations:
ε: Electron capture
IT: Isomeric transition - ^ Bold for stable isotopes, bold italic for near-stable isotopes (half-life longer than the age of the universe)
参考文献[编辑]
- ^ Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. Standard atomic weights of the elements 2021 (IUPAC Technical Report). Pure and Applied Chemistry. 2022-05-04. ISSN 1365-3075. doi:10.1515/pac-2019-0603 (英语).
- ^ 存档副本. [2015-09-15]. (原始内容存档于2017-02-19).
- ^ 3.0 3.1 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 . doi:10.1143/JPSJ.79.073201 .
- ^ 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 .
- ^ Sumikama, T.; et al. Observation of new neutron-rich isotopes in the vicinity of Zr110. Physical Review C. 2021, 103 (1): 014614 [2023-11-14]. Bibcode:2021PhRvC.103a4614S. S2CID 234019083. doi:10.1103/PhysRevC.103.014614. hdl:10261/260248 . (原始内容存档于2022-03-05).
- Isotope masses from Ame2003 Atomic Mass Evaluation by G. Audi, A.H. Wapstra, C. Thibault, J. Blachot and O. Bersillon in Nuclear Physics A729 (2003).
- Half-life, spin, and isomer data selected from these sources. Editing notes on this article's talk page.
- Audi, Bersillon, Blachot, Wapstra. The Nubase2003 evaluation of nuclear and decay properties (页面存档备份,存于互联网档案馆), Nuc. Phys. A 729, pp. 3-128 (2003).
- National Nuclear Data Center, Brookhaven National Laboratory. Information extracted from the NuDat 2.1 database (页面存档备份,存于互联网档案馆) (retrieved Sept. 2005).
- David R. Lide (ed.), Norman E. Holden in CRC Handbook of Chemistry and Physics, 85th Edition, online version. CRC Press. Boca Raton, Florida (2005). Section 11, Table of the Isotopes.
元素与同位素的稳定度 | |||||||||||||||||||||||||||||||||
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