铌的同位素

主要的铌同位素
标准原子质量（英语：Standard atomic weight） (Ar, 标准)	92.90637(1);
←Zr（40）	Mo（42）→
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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

符号	Z	N	同位素质量（u） ^{[n 1]}^{[n 2]}	半衰期 ^{[n 1]}^{[n 2]}	衰变方式^[2]	衰变产物 ^{[n 3]}^{[n 4]}	原子核自旋^{[n 1]}	相对丰度（莫耳分率）^{[n 2]}
符号	激发能量^{[n 1]}^{[n 2]}			半衰期 ^{[n 1]}^{[n 2]}	衰变方式^[2]	衰变产物 ^{[n 3]}^{[n 4]}	原子核自旋^{[n 1]}	相对丰度（莫耳分率）^{[n 2]}
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+
⁸⁴Nb	41	43	83.93357(32)#	9.8(9) s	β⁺, p (<.1%)	⁸³Y	3+
^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+
⁹¹Nb	41	50	90.906996(4)	680(130) a	β⁺ (.013%)	⁹¹Zr	9/2+
^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)+
⁹²Nb	41	51	91.907194(3)	3.47(24)×10⁷ a	β⁻ (.05%)	⁹²Mo	(7)+
^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+
^94mNb	40.902(12) keV			6.263(4) min	β⁻ (.5%)	⁹⁴Mo	3+
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-
^95mNb	235.690(20) keV			3.61(3) d	β⁻ (5.6%)	⁹⁵Mo	1/2-
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+)
^98mNb	84(4) keV			51.3(4) min	IT (.1%)	⁹⁸Nb	(5+)
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-
^99mNb	365.29(14) keV			2.6(2) min	IT (3.8%)	⁹⁹Nb	1/2-
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+)
¹⁰⁴Nb	41	63	103.92246(11)	4.9(3) s	β⁻, n (.06%)	¹⁰³Mo	(1+)
^104mNb	220(120) keV			940(40) ms	β⁻ (99.95%)	¹⁰⁴Mo	high
^104mNb	220(120) keV			940(40) ms	β⁻, n (.05%)	¹⁰³Mo	high
¹⁰⁵Nb	41	64	104.92394(11)	2.95(6) s	β⁻ (98.3%)	¹⁰⁵Mo	(5/2+)#
¹⁰⁵Nb	41	64	104.92394(11)	2.95(6) s	β⁻, n (1.7%)	¹⁰⁴Mo	(5/2+)#
¹⁰⁶Nb	41	65	105.92797(21)#	920(40) ms	β⁻ (95.5%)	¹⁰⁶Mo	2+#
¹⁰⁶Nb	41	65	105.92797(21)#	920(40) ms	β⁻, n (4.5%)	¹⁰⁵Mo	2+#
¹⁰⁷Nb	41	66	106.93031(43)#	300(9) ms	β⁻ (94%)	¹⁰⁷Mo	5/2+#
¹⁰⁷Nb	41	66	106.93031(43)#	300(9) ms	β⁻, n (6%)	¹⁰⁶Mo	5/2+#
¹⁰⁸Nb	41	67	107.93484(32)#	0.193(17) s	β⁻ (93.8%)	¹⁰⁸Mo	(2+)
¹⁰⁸Nb	41	67	107.93484(32)#	0.193(17) s	β⁻, n (6.2%)	¹⁰⁷Mo	(2+)
¹⁰⁹Nb	41	68	108.93763(54)#	190(30) ms	β⁻ (69%)	¹⁰⁹Mo	5/2+#
¹⁰⁹Nb	41	68	108.93763(54)#	190(30) ms	β⁻, n (69%)	¹⁰⁸Mo	5/2+#
¹¹⁰Nb	41	69	109.94244(54)#	170(20) ms	β⁻ (60%)	¹¹⁰Mo	2+#
¹¹⁰Nb	41	69	109.94244(54)#	170(20) ms	β⁻, n (40%)	¹⁰⁹Mo	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+#
¹¹⁴Nb^[3]	41	73
¹¹⁵Nb^[3]	41	74
¹¹⁶Nb^[4]	41	75
¹¹⁷Nb^[5]	41	76

^ ^1.0 ^1.1 ^1.2 ^1.3 画上#号的数据代表没有经过实验的证明，仅为理论推测。
^ ^2.0 ^2.1 ^2.2 ^2.3 用括号括起来的数据代表不确定性。
^ 稳定的衰变产物以粗体表示。
^ 半衰期超过5亿年的衰变产物以粗斜体表示。

←	同位素列表	→
锆的同位素	铌的同位素	钼的同位素

参考文献

^ 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.

[hash-2] 1.0 ^1.1 ^1.2 ^1.3 画上#号的数据代表没有经过实验的证明，仅为理论推测。

[brackets-3] 2.0 ^2.1 ^2.2 ^2.3 用括号括起来的数据代表不确定性。

[5] 稳定的衰变产物以粗体表示。

[6] 半衰期超过5亿年的衰变产物以粗斜体表示。

[CIAAW2021-1] 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）.

[4] 存档副本. [2015-09-15]. （原始内容存档于2017-02-19）.

[Ohnishi-7] 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  .

[8] 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  .

[9] 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）.

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