出典: フリー百科事典『ウィキペディア（Wikipedia）』
臭素
標準原子量 : 79.904(1) u
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
励起エネルギー
67 Br
35
32
66.96479(54)#
1/2-#
68 Br
35
33
67.95852(38)#
<1.2 µs
3+#
69 Br
35
34
68.95011(11)#
<24 ns
1/2-#
70 Br
35
35
69.94479(33)#
79.1(8) ms
0+#
70m Br
2292.2(8) keV
2.2(2) s
(9+)
71 Br
35
36
70.93874(61)
21.4(6) s
(5/2)-
72 Br
35
37
71.93664(6)
78.6(24) s
1+
72m Br
100.92(3) keV
10.6(3) s
1-
73 Br
35
38
72.93169(5)
3.4(2) min
1/2-
74 Br
35
39
73.929891(16)
25.4(3) min
(0-)
74m Br
13.58(21) keV
46(2) min
4(+#)
75 Br
35
40
74.925776(15)
96.7(13) min
3/2-
76 Br
35
41
75.924541(10)
16.2(2) h
1-
76m Br
102.58(3) keV
1.31(2) s
(4)+
77 Br
35
42
76.921379(3)
57.036(6) h
3/2-
77m Br
105.86(8) keV
4.28(10) min
9/2+
78 Br
35
43
77.921146(4)
6.46(4) min
1+
78m Br
180.82(13) keV
119.2(10) µs
(4+)
79 Br
35
44
78.9183371(22)
STABLE
3/2-
0.5069(7)
79m Br
207.61(9) keV
4.86(4) s
(9/2+)
80 Br
35
45
79.9185293(22)
17.68(2) min
1+
80m Br
85.843(4) keV
4.4205(8) h
5-
81 Br
35
46
80.9162906(21)
STABLE
3/2-
0.4931(7)
81m Br
536.20(9) keV
34.6(28) µs
9/2+
82 Br
35
47
81.9168041(21)
35.282(7) h
5-
82m Br
45.9492(10) keV
6.13(5) min
2-
83 Br
35
48
82.915180(5)
2.40(2) h
3/2-
83m Br
3068.8(6) keV
700(100) ns
(19/2-)
84 Br
35
49
83.916479(16)
31.80(8) min
2-
84m1 Br
320(10) keV
6.0(2) min
6-
84m2 Br
408.2(4) keV
<140 ns
1+
85 Br
35
50
84.915608(21)
2.90(6) min
3/2-
86 Br
35
51
85.918798(12)
55.1(4) s
(2-)
87 Br
35
52
86.920711(19)
55.65(13) s
3/2-
88 Br
35
53
87.92407(4)
16.29(6) s
(2-)
88m Br
272.7(3) keV
5.4(7) µs
89 Br
35
54
88.92639(6)
4.40(3) s
(3/2-,5/2-)
90 Br
35
55
89.93063(8)
1.91(1) s
91 Br
35
56
90.93397(8)
541(5) ms
3/2-#
92 Br
35
57
91.93926(5)
0.343(15) s
(2-)
93 Br
35
58
92.94305(32)#
102(10) ms
3/2-#
94 Br
35
59
93.94868(43)#
70(20) ms
95 Br
35
60
94.95287(54)#
50# ms [>300 ns]
3/2-#
96 Br
35
61
95.95853(75)#
20# ms [>300 ns]
97 Br
35
62
96.96280(86)#
10# ms [>300 ns]
3/2-#
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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