氬嘅同位素

氬有25個同位素，其中有3個係穩定嘅。

圖表

符號	Z（p）	N（n）	質量（原子質量單位）	半衰期	原子核自旋	相對豐度	相對豐度嘅變化率
	激發能量
30Ar	18	12	30.02156(32)#	<20 ns	0+
31Ar	18	13	31.01212(22)#	14.4(6) ms	5/2(+#)
32Ar	18	14	31.9976380(19)	98(2) ms	0+
32mAr	5600(100)# keV			?	5-#
33Ar	18	15	32.9899257(5)	173.0(20) ms	1/2+
34Ar	18	16	33.9802712(4)	844.5(34) ms	0+
35Ar	18	17	34.9752576(8)	1.775(4) s	3/2+
36Ar	18	18	35.967545106(29)	穩定	0+	0.003365(30)
37Ar	18	19	36.96677632(22)	35.04(4) d	3/2+
38Ar	18	20	37.9627324(4)	穩定	0+	0.000632(5)
39Ar	18	21	38.964313(5)	269(3) a	7/2-
40Ar	18	22	39.9623831225(29)	穩定	0+	0.996003(30)
41Ar	18	23	40.9645006(4)	109.61(4) min	7/2-
42Ar	18	24	41.963046(6)	32.9(11) a	0+
43Ar	18	25	42.965636(6)	5.37(6) min	(5/2-)
44Ar	18	26	43.9649240(17)	11.87(5) min	0+
45Ar	18	27	44.9680400(6)	21.48(15) s	(1/2,3/2,5/2)-
46Ar	18	28	45.96809(4)	8.4(6) s	0+
47Ar	18	29	46.97219(11)	1.23(3) s	3/2-#
48Ar	18	30	47.97454(32)#	0.48(40) s	0+
49Ar	18	31	48.98052(54)#	170(50) ms	3/2-#
50Ar	18	32	49.98443(75)#	85(30) ms	0+
51Ar	18	33	50.99163(75)#	60# ms [>200 ns]	3/2-#
52Ar	18	34	51.99678(97)#	10# ms	0+
53Ar	18	35	53.00494(107)#	3# ms	(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

• 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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