锶的同位素

锶（锶，原子量：87.62(1)）共有39个同位素，其中有4个同位素是稳定的。

**图表**
73
38
35
72.96597(64)#
>25 ms
β+ (>99.9%)
73Rb
1/2-#
β+, p (72Kr
74Sr
38
36
73.95631(54)#
50# ms >1.5 µs
β+
74Rb
0+
75Sr
38
37
74.94995(24)
88(3) ms
β+ (93.5%)
75Rb
(3/2-)
β+, p (6.5%)
74Kr
76Sr
38
38
75.94177(4)
7.89(7) s
β+
76Rb
0+
77Sr
38
39
76.937945(10)
9.0(2) s
β+ (99.75%)
77Rb
5/2+
β+, p (.25%)
76Kr
78Sr
38
40
77.932180(8)
159(8) s
β+
78Rb
0+
79Sr
38
41
78.929708(9)
2.25(10) min
β+
79Rb
3/2(-)
80Sr
38
42
79.924521(7)
106.3(15) min
β+
80Rb
0+
81Sr
38
43
80.923212(7)
22.3(4) min
β+
81Rb
1/2-
82Sr
38
44
81.918402(6)
25.36(3) d
EC
82Rb
0+
83Sr
38
45
82.917557(11)
32.41(3) h
β+
83Rb
7/2+
83mSr
259.15(9) keV
4.95(12) s
IT
83Sr
1/2-
84Sr
38
46
83.913425(3)
观测上稳定
0+
0.0056(1)
0.0055-0.0058
85Sr
38
47
84.912933(3)
64.853(8) d
EC
85Rb
9/2+
85mSr
238.66(6) keV
67.63(4) min
IT (86.6%)
85Sr
1/2-
β+ (13.4%)
85Rb
86Sr
38
48
85.9092607309(91)
Stable
0+
0.0986(1)
0.0975-0.0999
86mSr
2955.68(21) keV
455(7) ns
8+
87Sr
38
49
86.9088774970(91)
Stable
9/2+
0.0700(1)
0.0694-0.0714
87mSr
388.533(3) keV
2.815(12) h
IT (99.7%)
87Sr
1/2-
EC (.3%)
87Rb
link=yes
38
50
87.9056122571(97)
Stable
0+
0.8258(1)
0.8229-0.8275
89Sr
38
51
88.9074507(12)
50.57(3) d
β-
89Y
5/2+
锶-90|90
38
52
89.907738(3)
28.90(3) y
β-
90Y
0+
91Sr
38
53
90.910203(5)
9.63(5) h
β-
91Y
5/2+
92Sr
38
54
91.911038(4)
2.66(4) h
β-
92Y
0+
93Sr
38
55
92.914026(8)
7.423(24) min
β-
93Y
5/2+
94Sr
38
56
93.915361(8)
75.3(2) s
β-
94Y
0+
95Sr
38
57
94.919359(8)
23.90(14) s
β-
95Y
1/2+
96Sr
38
58
95.921697(29)
1.07(1) s
β-
96Y
0+
97Sr
38
59
96.926153(21)
429(5) ms
β- (99.95%)
97Y
1/2+
β-, n (.05%)
96Y
97m1Sr
308.13(11) keV
170(10) ns
(7/2)+
97m2Sr
830.8(2) keV
255(10) ns
(11/2-)#
98Sr
38
60
97.928453(28)
0.653(2) s
β- (99.75%)
98Y
0+
β-, n (.25%)
97Y
99Sr
38
61
98.93324(9)
0.269(1) s
β- (99.9%)
99Y
3/2+
β-, n (.1%)
98Y
100Sr
38
62
99.93535(14)
202(3) ms
β- (99.02%)
100Y
0+
β-, n (.98%)
99Y
101Sr
38
63
100.94052(13)
118(3) ms
β- (97.63%)
101Y
(5/2-)
β-, n (2.37%)
100Y
102Sr
38
64
101.94302(12)
69(6) ms
β- (94.5%)
102Y
0+
β-, n (5.5%)
101Y
103Sr
38
65
102.94895(54)#
50# ms >300 ns
β-
103Y
104Sr
38
66
103.95233(75)#
30# ms >300 ns
β-
104Y
0+
105Sr
38
67
104.95858(75)#
20# ms >300 ns

**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) date=20110324090740 . Pure Appl. Chem. Vol. 75, No. 6, pp. 683-800, (2003) and  Atomic Weights Revised (2005) date=20080305062433 .- 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 date=20110716114059 , Nuc. Phys. A 729, pp. 3-128 (2003).
** National Nuclear Data Center, Brookhaven National Laboratory. Information extracted from the  NuDat 2.1 database date=20190513230730  (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.