臭素の同位体

ウィキペディア

臭素の同位体

出典: フリー百科事典『ウィキペディア（Wikipedia）』 (2011/05/31 13:01 UTC 版)

臭素（Br）

標準原子量: 79.904(1) u

一覧

同位体核種	Z(p)	N(n)	同位体質量 (u)	半減期	核スピン数	天然存在比	天然存在比 (範囲)
	励起エネルギー
67Br	35	32	66.96479(54)#		1/2-#
68Br	35	33	67.95852(38)#	<1.2 µs	3+#
69Br	35	34	68.95011(11)#	<24 ns	1/2-#
70Br	35	35	69.94479(33)#	79.1(8) ms	0+#
70mBr	2292.2(8) keV			2.2(2) s	(9+)
71Br	35	36	70.93874(61)	21.4(6) s	(5/2)-
72Br	35	37	71.93664(6)	78.6(24) s	1+
72mBr	100.92(3) keV			10.6(3) s	1-
73Br	35	38	72.93169(5)	3.4(2) min	1/2-
74Br	35	39	73.929891(16)	25.4(3) min	(0-)
74mBr	13.58(21) keV			46(2) min	4(+#)
75Br	35	40	74.925776(15)	96.7(13) min	3/2-
76Br	35	41	75.924541(10)	16.2(2) h	1-
76mBr	102.58(3) keV			1.31(2) s	(4)+
77Br	35	42	76.921379(3)	57.036(6) h	3/2-
77mBr	105.86(8) keV			4.28(10) min	9/2+
78Br	35	43	77.921146(4)	6.46(4) min	1+
78mBr	180.82(13) keV			119.2(10) µs	(4+)
79Br	35	44	78.9183371(22)	STABLE	3/2-	0.5069(7)
79mBr	207.61(9) keV			4.86(4) s	(9/2+)
80Br	35	45	79.9185293(22)	17.68(2) min	1+
80mBr	85.843(4) keV			4.4205(8) h	5-
81Br	35	46	80.9162906(21)	STABLE	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	5-
82mBr	45.9492(10) keV			6.13(5) min	2-
83Br	35	48	82.915180(5)	2.40(2) h	3/2-
83mBr	3068.8(6) keV			700(100) ns	(19/2-)
84Br	35	49	83.916479(16)	31.80(8) min	2-
84m1Br	320(10) keV			6.0(2) min	6-
84m2Br	408.2(4) keV			<140 ns	1+
85Br	35	50	84.915608(21)	2.90(6) min	3/2-
86Br	35	51	85.918798(12)	55.1(4) s	(2-)
87Br	35	52	86.920711(19)	55.65(13) s	3/2-
88Br	35	53	87.92407(4)	16.29(6) s	(2-)
88mBr	272.7(3) keV			5.4(7) µs
89Br	35	54	88.92639(6)	4.40(3) s	(3/2-,5/2-)
90Br	35	55	89.93063(8)	1.91(1) s
91Br	35	56	90.93397(8)	541(5) ms	3/2-#
92Br	35	57	91.93926(5)	0.343(15) s	(2-)
93Br	35	58	92.94305(32)#	102(10) ms	3/2-#
94Br	35	59	93.94868(43)#	70(20) ms
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-#

参考文献

• 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.