氬的同位素

氬 (原子質量單位:39.948(1) )共有25個同位素，其中有3個是穩定的。

圖表 [编辑]

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	相對豐度的變化率
符號	激發能量			半衰期	原子核自旋	相對豐度	相對豐度的變化率
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:畫上#號的數據代表沒有經過實驗的証明，只是理論推測而已，而用括號括起來的代表數據不確定性。

←	同位素列表	→
氯的同位素	氬的同位素	鉀的同位素

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.