鈮嘅同位素
鈮嘅同位素有58個,只係得93Nb(鈮-93)係穩定,其餘嘅都係唔穩定。唔穩定嘅同位素之中,半衰期最長嘅係92Nb,半衰期係3.47×107年,其次係94Nb,有2.03×104年,其餘嘅半衰期都喺1000年以下。
圖表
編輯符號 | Z(p) | N(n) | 質量(u) | 半衰期 | 原子核自旋 | 相對豐度 | 相對豐度嘅變化率 |
---|---|---|---|---|---|---|---|
激發能量 | |||||||
81Nb | 41 | 40 | 80.94903(161)# | <44 ns | 3/2-# | ||
82Nb | 41 | 41 | 81.94313(32)# | 51(5) ms | 0+ | ||
83Nb | 41 | 42 | 82.93671(34) | 4.1(3) s | (5/2+) | ||
84Nb | 41 | 43 | 83.93357(32)# | 9.8(9) s | 3+ | ||
84mNb | 338(10) keV | 103(19) ns | (5-) | ||||
85Nb | 41 | 44 | 84.92791(24) | 20.9(7) s | (9/2+) | ||
85mNb | 759.0(10) keV | 12(5) s | (1/2-) | ||||
86Nb | 41 | 45 | 85.92504(9) | 88(1) s | (6+) | ||
86mNb | 250(160)# keV | 56(8) s | high | ||||
87Nb | 41 | 46 | 86.92036(7) | 3.75(9) min | (1/2-) | ||
87mNb | 3.84(14) keV | 2.6(1) min | (9/2+)# | ||||
88Nb | 41 | 47 | 87.91833(11) | 14.55(6) min | (8+) | ||
88mNb | 40(140) keV | 7.8(1) min | (4-) | ||||
89Nb | 41 | 48 | 88.913418(29) | 2.03(7) h | (9/2+) | ||
89mNb | 0(30)# keV | 1.10(3) h | (1/2)- | ||||
90Nb | 41 | 49 | 89.911265(5) | 14.60(5) h | 8+ | ||
90m1Nb | 122.370(22) keV | 63(2) µs | 6+ | ||||
90m2Nb | 124.67(25) keV | 18.81(6) s | 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 | 9/2+ | ||
91m1Nb | 104.60(5) keV | 60.86(22) d | 1/2- | ||||
91m2Nb | 2034.35(19) keV | 3.76(12) µs | (17/2-) | ||||
92Nb | 41 | 51 | 91.907194(3) | 3.47(24)E+7 a | (7)+ | ||
92m1Nb | 135.5(4) keV | 10.15(2) d | (2)+ | ||||
92m2Nb | 225.7(4) keV | 5.9(2) µs | (2)- | ||||
92m3Nb | 2203.3(4) keV | 167(4) ns | (11-) | ||||
93Nb | 41 | 52 | 92.9063781(26) | 穩定 | 9/2+ | 1.0000 | |
93mNb | 30.77(2) keV | 16.13(14) a | 1/2- | ||||
94Nb | 41 | 53 | 93.9072839(26) | 2.03(16)E+4 a | (6)+ | ||
94mNb | 40.902(12) keV | 6.263(4) min | 3+ | ||||
95Nb | 41 | 54 | 94.9068358(21) | 34.991(6) d | 9/2+ | ||
95mNb | 235.690(20) keV | 3.61(3) d | 1/2- | ||||
96Nb | 41 | 55 | 95.908101(4) | 23.35(5) h | 6+ | ||
97Nb | 41 | 56 | 96.9080986(27) | 72.1(7) min | 9/2+ | ||
97mNb | 743.35(3) keV | 52.7(18) s | 1/2- | ||||
98Nb | 41 | 57 | 97.910328(6) | 2.86(6) s | 1+ | ||
98mNb | 84(4) keV | 51.3(4) min | (5+) | ||||
99Nb | 41 | 58 | 98.911618(14) | 15.0(2) s | 9/2+ | ||
99mNb | 365.29(14) keV | 2.6(2) min | 1/2- | ||||
100Nb | 41 | 59 | 99.914182(28) | 1.5(2) s | 1+ | ||
100mNb | 470(40) keV | 2.99(11) s | (4+,5+) | ||||
101Nb | 41 | 60 | 100.915252(20) | 7.1(3) s | (5/2#)+ | ||
102Nb | 41 | 61 | 101.91804(4) | 1.3(2) s | 1+ | ||
102mNb | 130(50) keV | 4.3(4) s | high | ||||
103Nb | 41 | 62 | 102.91914(7) | 1.5(2) s | (5/2+) | ||
104Nb | 41 | 63 | 103.92246(11) | 4.9(3) s | (1+) | ||
104mNb | 220(120) keV | 940(40) ms | high | ||||
105Nb | 41 | 64 | 104.92394(11) | 2.95(6) s | (5/2+)# | ||
106Nb | 41 | 65 | 105.92797(21)# | 920(40) ms | 2+# | ||
107Nb | 41 | 66 | 106.93031(43)# | 300(9) ms | 5/2+# | ||
108Nb | 41 | 67 | 107.93484(32)# | 0.193(17) s | (2+) | ||
109Nb | 41 | 68 | 108.93763(54)# | 190(30) ms | 5/2+# | ||
110Nb | 41 | 69 | 109.94244(54)# | 170(20) ms | 2+# | ||
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+# |
備註:有#嘅數據代表冇經過實驗嘅證明,只係理論推測,而用咗括號括係代表數據唔確定。
參攷
編輯- 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).
- Isotopic compositions and standard atomic masses from Atomic weights of the elements. Review 2000 (IUPAC Technical Report). Pure Appl. Chem. Vol. 75, No. 6, pp. 683-800, (2003) and Atomic Weights Revised (2005).
- 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, Nuc. Phys. A 729, pp. 3-128 (2003).
- National Nuclear Data Center, Brookhaven National Laboratory. Information extracted from the NuDat 2.1 database (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.
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