鋁嘅同位素

鋁有28個同位素，只係得²⁷Al比較穩定，其餘嘅都非常唔穩定。

圖表

符號	Z（p）	N（n）	質量（u）	半衰期	原子核自旋	相對豐度	相對豐度嘅變化量
	激發能量
19Al	13	6	19.0(218)#	<(35) ns #
20Al	13	7	(20.0194)#	<3(5) ns #
21Al	13	8	21.02804(32)#	<35 ns	1/2+#
22Al	13	9	22.01952(10)#	59(3) ms	(3)+
23Al	13	10	23.007267(20)	470(30) ms	5/2+#
23mAl				~0.35 s	#79
24Al	13	11	23.9999389(30)	2.053(4) s	4+
24mAl	425.8(1) keV			131.3(25) ms	1+
25Al	13	12	24.9904281(5)	7.183(12) s	5/2+
26Al	13	13	25.98689169(6)	7.17(24)E+5 a	5+
26mAl	228.305(13) keV			6.3452(19) s	0+
27Al	13	14	26.98153863(12)	穩定	5/2+	1.0000
28Al	13	15	27.98191031(14)	2.2414(12) min	3+
29Al	13	16	28.9804450(13)	6.56(6) min	5/2+
30Al	13	17	29.982960(15)	3.60(6) s	3+
31Al	13	18	30.983947(22)	644(25) ms	(3/2,5/2)+
32Al	13	19	31.98812(9)	31.7(8) ms	1+
32mAl	955.7(4) keV			200(20) ns	(4+)
33Al	13	20	32.99084(8)	41.7(2) ms	(5/2+)#
34Al	13	21	33.99685(12)	56.3(5) ms	4-#
35Al	13	22	34.99986(19)	38.6(4) ms	5/2+#
36Al	13	23	36.00621(23)	90(40) ms
37Al	13	24	37.01068(36)	10.7(13) ms
38Al	13	25	38.01723(78)	7.6(6) ms
39Al	13	26	39.02297(158)	7.6(16) ms	3/2+#
40Al	13	27	40.03145(75)#	10# ms [>260 ns]
41Al	13	28	41.03833(86)#	2# ms [>260 ns]	3/2+#
42Al	13	29	42.04689(97)#	1# ms

備註：畫上#號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。

參考

• 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).
• 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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