溴的同位素

**主要的溴同位素**
標準原子質量（英语：Standard atomic weight） (Ar, 標準)	[79.901, 79.907]; 傳統: 79.904;
←Se（34）	Kr（36）→
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溴共有45個同位素，其中有2個同位素是穩定的。

圖表

符號	Z	N	同位素質量（u） ^{[n 1]}^{[n 2]}	半衰期 ^{[n 1]}^{[n 2]}	衰變方式^[2]	衰變產物 ^{[n 3]}^{[n 4]}	原子核自旋^{[n 1]}	相對豐度（莫耳分率）^{[n 2]}	相對豐度的變化量（莫耳分率）
符號	激發能量^{[n 2]}			半衰期 ^{[n 1]}^{[n 2]}	衰變方式^[2]	衰變產物 ^{[n 3]}^{[n 4]}	原子核自旋^{[n 1]}	相對豐度（莫耳分率）^{[n 2]}	相對豐度的變化量（莫耳分率）
⁶⁸Br^[3]	35	33	67.95836(28)#	~50 ns	p	⁶⁷Se	3+#
⁶⁹Br	35	34	68.95011(11)#	<24 ns	p	⁶⁸Se	1/2−#
⁷⁰Br	35	35	69.94479(33)#	79.1(8) ms	β⁺	⁷⁰Se	0+#
^70mBr	2292.2(8) keV			2.2(2) s	β⁺	⁷⁰Se	(9+)
^70mBr	2292.2(8) keV			2.2(2) s	IT	⁷⁰Br	(9+)
⁷¹Br	35	36	70.93874(61)	21.4(6) s	β⁺	⁷¹Se	(5/2)−
⁷²Br	35	37	71.93664(6)	78.6(24) s	β⁺	⁷²Se	1+
^72mBr	100.92(3) keV			10.6(3) s	IT (>99.9%)	⁷²Br	1−
^72mBr	100.92(3) keV			10.6(3) s	β⁺ (<0.1%)	⁷²Se	1−
⁷³Br	35	38	72.93169(5)	3.4(2) min	β⁺	⁷³Se	1/2−
⁷⁴Br	35	39	73.929891(16)	25.4(3) min	β⁺	⁷⁴Se	(0−)
^74mBr	13.58(21) keV			46(2) min	β⁺	⁷⁴Se	4(+#)
⁷⁵Br	35	40	74.925776(15)	96.7(13) min	β⁺	⁷⁵Se	3/2−
⁷⁶Br	35	41	75.924541(10)	16.2(2) h	β⁺	⁷⁶Se	1−
^76mBr	102.58(3) keV			1.31(2) s	IT (99.4%)	⁷⁶Br	(4)+
^76mBr	102.58(3) keV			1.31(2) s	β⁺ (0.6%)	⁷⁶Se	(4)+
⁷⁷Br	35	42	76.921379(3)	57.036(6) h	β⁺	⁷⁷Se	3/2−
^77mBr	105.86(8) keV			4.28(10) min	IT	⁷⁷Br	9/2+
⁷⁸Br	35	43	77.921146(4)	6.46(4) min	β⁺ (99.99%)	⁷⁸Se	1+
⁷⁸Br	35	43	77.921146(4)	6.46(4) min	β⁻ (0.01%)	⁷⁸Kr	1+
^78mBr	180.82(13) keV			119.2(10) µs			(4+)
79 Br	35	44	78.9183371(22)	稳定			3/2−	0.5069(7)
^79mBr	207.61(9) keV			4.86(4) s	IT	⁷⁹Br	(9/2+)
⁸⁰Br	35	45	79.9185293(22)	17.68(2) min	β⁻ (91.7%)	⁸⁰Kr	1+
⁸⁰Br	35	45	79.9185293(22)	17.68(2) min	β⁺ (8.3%)	⁸⁰Se	1+
^80mBr	85.843(4) keV			4.4205(8) h	IT	⁸⁰Br	5−
⁸¹Br	35	46	80.9162906(21)	稳定			3/2−	0.4931(7)
^81mBr	536.20(9) keV			34.6(28) µs			9/2+
⁸²Br	35	47	81.9168041(21)	35.282(7) h	β⁻	⁸²Kr	5−
^82mBr	45.9492(10) keV			6.13(5) min	IT	⁸²Br	2−
^82mBr	45.9492(10) keV			6.13(5) min	β⁻	⁸²Kr	2−
⁸³Br	35	48	82.915180(5)	2.40(2) h	β⁻	⁸³Kr	3/2−
^83mBr	3068.8(6) keV			700(100) ns			(19/2−)
⁸⁴Br	35	49	83.916479(16)	31.80(8) min	β⁻	⁸⁴Kr	2−
^84m1Br	320(10) keV			6.0(2) min	β⁻	⁸⁴Kr	6−
^84m2Br	408.2(4) keV			<140 ns			1+
⁸⁵Br	35	50	84.915608(21)	2.90(6) min	β⁻	⁸⁵Kr	3/2−
⁸⁶Br	35	51	85.918798(12)	55.1(4) s	β⁻	⁸⁶Kr	(2−)
⁸⁷Br	35	52	86.920711(19)	55.65(13) s	β⁻ (97.48%)	⁸⁷Kr	3/2−
⁸⁷Br	35	52	86.920711(19)	55.65(13) s	β⁻, n (2.52%)	⁸⁶Kr	3/2−
⁸⁸Br	35	53	87.92407(4)	16.29(6) s	β⁻ (93.42%)	⁸⁸Kr	(2−)
⁸⁸Br	35	53	87.92407(4)	16.29(6) s	β⁻, n (6.48%)	⁸⁷Kr	(2−)
^88mBr	272.7(3) keV			5.4(7) µs
⁸⁹Br	35	54	88.92639(6)	4.40(3) s	β⁻ (86.2%)	⁸⁹Kr	(3/2−,5/2−)
⁸⁹Br	35	54	88.92639(6)	4.40(3) s	β⁻, n (13.8%)	⁸⁸Kr	(3/2−,5/2−)
⁹⁰Br	35	55	89.93063(8)	1.91(1) s	β⁻ (74.8%)	⁹⁰Kr
⁹⁰Br	35	55	89.93063(8)	1.91(1) s	β⁻, n (25.2%)	⁸⁹Kr
⁹¹Br	35	56	90.93397(8)	541(5) ms	β⁻ (80%)	⁹¹Kr	3/2−#
⁹¹Br	35	56	90.93397(8)	541(5) ms	β⁻, n (20%)	⁹⁰Kr	3/2−#
⁹²Br	35	57	91.93926(5)	0.343(15) s	β⁻ (66.9%)	⁹²Kr	(2−)
⁹²Br	35	57	91.93926(5)	0.343(15) s	β⁻, n (33.1%)	⁹¹Kr	(2−)
⁹³Br	35	58	92.94305(32)#	102(10) ms	β⁻ (89%)	⁹³Kr	3/2−#
⁹³Br	35	58	92.94305(32)#	102(10) ms	β⁻, n (11%)	⁹²Kr	3/2−#
⁹⁴Br	35	59	93.94868(43)#	70(20) ms	β⁻ (70%)	⁹⁴Kr
⁹⁴Br	35	59	93.94868(43)#	70(20) ms	β⁻, n (30%)	⁹³Kr
⁹⁵Br	35	60	94.95287(54)#	50# ms [>300 ns]			3/2−#
⁹⁶Br	35	61	95.95853(75)#	20# ms [>300 ns]
⁹⁷Br	35	62	96.96280(86)#	10# ms [>300 ns]			3/2−#
⁹⁸Br	35	63	(98)#

^ ^1.0 ^1.1 ^1.2 畫上#號的數據代表沒有經過實驗的証明，僅為理論推測。
^ ^2.0 ^2.1 ^2.2 ^2.3 用括號括起來的數據代表不確定性。
^ 穩定的衰變產物以粗體表示。
^ 半衰期超过5亿年的衰变产物以粗斜体表示。

←	同位素列表	→
硒的同位素	溴的同位素	氪的同位素

参考文獻

^ 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.
^ Universal Nuclide Chart. [2015-09-13]. （原始内容存档于2017-02-19）.
^ Wimmer, K.; et al. Discovery of ⁶⁸Br in secondary reactions of radioactive beams. Physics Letters B. 2019, 795: 266–270. S2CID 182953245. arXiv:1906.04067 . doi:10.1016/j.physletb.2019.06.014.

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) （页面存档备份，存于互联网档案馆）. 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 （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.

分类

[hash-2] 1.0 ^1.1 ^1.2 畫上#號的數據代表沒有經過實驗的証明，僅為理論推測。

[brackets-3] 2.0 ^2.1 ^2.2 ^2.3 用括號括起來的數據代表不確定性。

[5] 穩定的衰變產物以粗體表示。

[6] 半衰期超过5亿年的衰变产物以粗斜体表示。

[CIAAW2013-1] 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.

[4] Universal Nuclide Chart. [2015-09-13]. （原始内容存档于2017-02-19）.

[68Br-7] Wimmer, K.; et al. Discovery of ⁶⁸Br in secondary reactions of radioactive beams. Physics Letters B. 2019, 795: 266–270. S2CID 182953245. arXiv:1906.04067 . doi:10.1016/j.physletb.2019.06.014.

[1]

[n 1]

[n 2]

[2]

[n 3]

[n 4]

[3]

溴的同位素

圖表

参考文獻

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