氪的同位素

**主要的氪同位素**
β+	79Br
γ	–
γ	–
标准原子质量 (Ar, 标准)	83.798(2);
←Br（35）	Rb（37）→
	查看; 讨论; 编辑;

氪（原子量：83.798(2)）共有40个同位素，其中有5个同位素是稳定的。

图表

符号	Z（p ）	N（n ）	同位素质量（u）	半衰期	衰变方式^[3]	衰变产物^{[n 1]}	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）
符号	激发能量			半衰期	衰变方式^[3]	衰变产物^{[n 1]}	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）
⁶⁹Kr	36	33	68.96518(43)#	32(10) ms	β⁺	⁶⁹Br	5/2-#
⁷⁰Kr	36	34	69.95526(41)#	52(17) ms	β⁺	⁷⁰Br	0+
⁷¹Kr	36	35	70.94963(70)	100(3) ms	β⁺ (94.8%)	⁷¹Br	(5/2)-
⁷¹Kr	36	35	70.94963(70)	100(3) ms	β⁺, p (5.2%)	⁷⁰Se	(5/2)-
⁷²Kr	36	36	71.942092(9)	17.16(18) s	β⁺	⁷²Br	0+
⁷³Kr	36	37	72.939289(7)	28.6(6) s	β⁺ (99.32%)	⁷³Br	3/2-
⁷³Kr	36	37	72.939289(7)	28.6(6) s	β⁺, p (.68%)	⁷²Se	3/2-
^73mKr	433.66(12) keV			107(10) ns			(9/2+)
⁷⁴Kr	36	38	73.9330844(22)	11.50(11) min	β⁺	⁷⁴Br	0+
⁷⁵Kr	36	39	74.930946(9)	4.29(17) min	β⁺	⁷⁵Br	5/2+
⁷⁶Kr	36	40	75.925910(4)	14.8(1) h	β⁺	⁷⁶Br	0+
⁷⁷Kr	36	41	76.9246700(21)	74.4(6) min	β⁺	⁷⁷Br	5/2+
⁷⁸Kr	36	42	77.9203648(12)	9.2 ^+5.5_−2.6 ^+1.3₋×10²¹ y^[1]	Double EC	⁷⁸Se	0+	0.00355(3)
⁷⁹Kr	36	43	78.920082(4)	35.04(10) h	β⁺	⁷⁹Br	1/2-
^79mKr	129.77(5) keV			50(3) s			7/2+
⁸⁰Kr	36	44	79.9163790(16)	稳定			0+	0.02286(10)
⁸¹Kr^{[n 2]}	36	45	80.9165920(21)	2.29(11)×10⁵ a	ε	⁸¹Br	7/2+	trace
^81mKr	190.62(4) keV			13.10(3) s	IT (99.975%)	⁸¹Kr	1/2-
^81mKr	190.62(4) keV			13.10(3) s	ε (.025%)	⁸¹Br	1/2-
⁸²Kr	36	46	81.9134836(19)	稳定			0+	0.11593(31)
⁸³Kr^{[n 3]}	36	47	82.914136(3)	稳定			9/2+	0.11500(19)
^83m1Kr	9.4053(8) keV			154.4(11) ns			7/2+
^83m2Kr	41.5569(10) keV			1.83(2) h	IT	⁸³Kr	1/2-
⁸⁴Kr^{[n 3]}	36	48	83.911507(3)	稳定			0+	0.56987(15)
^84mKr	3236.02(18) keV			1.89(4) µs			8+
⁸⁵Kr^{[n 3]}	36	49	84.9125273(21)	10.776(3) a	β⁻	⁸⁵Rb	9/2+	trace
^85m1Kr	304.871(20) keV			4.480(8) h	β⁻ (78.6%)	⁸⁵Rb	1/2-
^85m1Kr	304.871(20) keV			4.480(8) h	IT (21.4%)	⁸⁵Kr	1/2-
^85m2Kr	1991.8(13) keV			1.6(7) µs [1.2(+10-4) µs]			(17/2+)
⁸⁶Kr^{[n 4]}^{[n 3]}	36	50	85.91061073(11)	观测上稳定^{[n 5]}			0+	0.17279(41)
⁸⁷Kr	36	51	86.91335486(29)	76.3(5) min	β⁻	⁸⁷Rb	5/2+
⁸⁸Kr	36	52	87.914447(14)	2.84(3) h	β⁻	⁸⁸Rb	0+
⁸⁹Kr	36	53	88.91763(6)	3.15(4) min	β⁻	⁸⁹Rb	3/2(+#)
⁹⁰Kr	36	54	89.919517(20)	32.32(9) s	β⁻	^90mRb	0+
⁹¹Kr	36	55	90.92345(6)	8.57(4) s	β⁻	⁹¹Rb	5/2(+)
⁹²Kr	36	56	91.926156(13)	1.840(8) s	β⁻ (99.96%)	⁹²Rb	0+
⁹²Kr	36	56	91.926156(13)	1.840(8) s	β⁻, n (.033%)	⁹¹Rb	0+
⁹³Kr	36	57	92.93127(11)	1.286(10) s	β⁻ (98.05%)	⁹³Rb	1/2+
⁹³Kr	36	57	92.93127(11)	1.286(10) s	β⁻, n (1.95%)	⁹²Rb	1/2+
⁹⁴Kr	36	58	93.93436(32)#	210(4) ms	β⁻ (94.3%)	⁹⁴Rb	0+
⁹⁴Kr	36	58	93.93436(32)#	210(4) ms	β⁻, n (5.7%)	⁹³Rb	0+
⁹⁵Kr	36	59	94.93984(43)#	114(3) ms	β⁻	⁹⁵Rb	1/2(+)
⁹⁶Kr	36	60	95.94307(54)#	80(7) ms	β⁻	⁹⁶Rb	0+
⁹⁷Kr	36	61	96.94856(54)#	63(4) ms	β⁻	⁹⁷Rb	3/2+#
⁹⁷Kr	36	61	96.94856(54)#	63(4) ms	β⁻, n	⁹⁶Rb	3/2+#
⁹⁸Kr	36	62	97.95191(64)#	46(8) ms			0+
⁹⁹Kr	36	63	98.95760(64)#	40(11) ms			(3/2+)#
¹⁰⁰Kr	36	64	99.96114(54)#	10# ms [>300 ns]			0+
¹⁰¹Kr ^{[n 6]}	36	65	unknown	>635 ns	β⁻, 2n	⁹⁹Rb	unknown
					β⁻, n	¹⁰⁰Rb
					β⁻	¹⁰¹Rb

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	→
[[{{{前一个}}}]]	{{{这一个}}}	[[{{{下一个}}}]]

注释

↑ Bold for stable isotopes, bold italics for nearly-stable isotopes (half-life longer than the age of the universe)
↑ Used to date groundwater
↑ ^3.0 ^3.1 ^3.2 ^3.3 Fission product
↑ Formerly used to define the meter
↑ Believed to decay by β⁻β⁻ to ⁸⁶Sr
↑ New isotope.

参考文献

↑ ^1.0 ^1.1 Patrignani, C.; et al. Review of Particle Physics. Chinese Physics C. 2016, 40 (10): 100001. doi:10.1088/1674-1137/40/10/100001. 已忽略未知参数|collaboration= (帮助) See p. 768
↑ 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.
↑ 存档副本. [2015-09-13].

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.

[4] Bold for stable isotopes, bold italics for nearly-stable isotopes (half-life longer than the age of the universe)

[5] Used to date groundwater

[FP-6] 3.0 ^3.1 ^3.2 ^3.3 Fission product

[7] Formerly used to define the meter

[8] Believed to decay by β⁻β⁻ to ⁸⁶Sr

[9] New isotope.

[Patrignani2016-1] 1.0 ^1.1 Patrignani, C.; et al. Review of Particle Physics. Chinese Physics C. 2016, 40 (10): 100001. doi:10.1088/1674-1137/40/10/100001. 已忽略未知参数|collaboration= (帮助) See p. 768

[CIAAW2013-2] 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] 存档副本. [2015-09-13].

[1]

[2]

[3]

[n 1]

[n 2]

[n 3]

[n 4]

[n 5]

[n 6]