碲的同位素

碲（原子量：127.60(3)）有39種同位素與17種同核異構體，原子量介於104至142。其中，有八種同位素（120Te、122Te、123Te、124Te、125Te、126Te、128Te、130Te）存在於自然界。128Te和130Te有放射性，但半衰期都極長，分別為2.2524年和7.9120年。ref碲最長壽的人造同位素則是半衰期19.31天的121Te，但諸如121mTe（半衰期164.7天）的同核異構體有更長的半衰期。
放射性同位素128Te和130Te是碲最常見的兩種同位素。碲與銦、錸一樣都是放射性同位素的丰度比穩定同位素的丰度大的例子。
有團隊報告稱已發現123Te的電子捕獲，但他們之後的測量結果否認了這點。123Te的半衰期至少為9.216年。

**圖表**
104Te
52
52
100Sn
0+
105Te
52
53
104.94364(54)#
620(70) ns
α
101Sn
5/2+#
106Te
52
54
105.93750(14)
70(20) µs70(+20-10) µs
α
102Sn
0+
107Te
52
55
106.93501(32)#
3.1(1) ms
α (70%)
103Sn
5/2+#
β+ (30%)
107Sb
108Te
52
56
107.92944(11)
2.1(1) s
β+ (51%)
108Sb
0+
α (49%)
104Sn
β+, p (2.4%)
107Sn
β+, α (.065%)
104In
109Te
52
57
108.92742(7)
4.6(3) s
β+ (86.99%)
109Sb
(5/2+)

β+, p (9.4%)
108Sn
α (7.9%)
105Sn
β+, α (.005%)
105In
110Te
52
58
109.92241(6)
18.6(8) s
β+ (99.99%)
110Sb
0+
β+, p (.003%)
109Sn
111Te
52
59
110.92111(8)
19.3(4) s
β+
111Sb
(5/2)+#
β+, p （不常見）
110Sn
112Te
52
60
111.91701(18)
2.0(2) min
β+
112Sb
0+
113Te
52
61
112.91589(3)
1.7(2) min
β+
113Sb
(7/2+)
114Te
52
62
113.91209(3)
15.2(7) min
β+
114Sb
0+
115Te
52
63
114.91190(3)
5.8(2) min
β+
115Sb
7/2+
115m1Te
10(7) keV
6.7(4) min
β+
115Sb
(1/2)+
IT
115Te
115m2Te
280.05(20) keV
7.5(2) µs
11/2-
116Te
52
64
115.90846(3)
2.49(4) h
β+
116Sb
0+
117Te
52
65
116.908645(14)
62(2) min
β+
117Sb
1/2+
117mTe
296.1(5) keV
103(3) ms
IT
117Te
(11/2-)
118Te
52
66
117.905828(16)
6.00(2) d
EC
118Sb
0+
119Te
52
67
118.906404(9)
16.05(5) h
β+
119Sb
1/2+
119mTe
260.96(5) keV
4.70(4) d
β+ (99.99%)
119Sb
11/2-
IT (.008%)
119Te
120Te
52
68
119.90402(1)
觀測上穩定
0+
9(1)×10−4
121Te
52
69
120.904936(28)
19.16(5) d
β+
121Sb
1/2+
121mTe
293.991(22) keV
154(7) d
IT (88.6%)
121Te
11/2-
β+ (11.4%)
121Sb
122Te
52
70
121.9030439(16)
Stable
0+
0.0255(12)
123Te
52
71
122.9042700(16)
觀測上穩定
1/2+
0.0089(3)
123mTe
247.47(4) keV
119.2(1) d
IT
123Te
11/2-
124Te
52
72
123.9028179(16)
Stable
0+
0.0474(14)
125Te
52
73
124.9044307(16)
Stable
1/2+
0.0707(15)
125mTe
144.772(9) keV
57.40(15) d
IT
125Te
11/2-
126Te
52
74
125.9033117(16)
Stable
0+
0.1884(25)
127Te
52
75
126.9052263(16)
9.35(7) h
β-
127I
3/2+
127mTe
88.26(8) keV
109(2) d
IT (97.6%)
127Te
11/2-
β- (2.4%)
127I
128Te
52
76
127.9044631(19)
2.2(3)×1024 a
β-
128Xe
0+
0.3174(8)
128mTe
2790.7(4) keV
370(30) ns
10+
129Te
52
77
128.9065982(19)
69.6(3) min
β-
129I
3/2+
129mTe
105.50(5) keV
33.6(1) d
11/2-


130Te
52
78
129.9062244(21)
790(100)×1018 a
β-
130Xe
0+
0.3408(62)
130m1Te
2146.41(4) keV
115(8) ns
(7)-
130m2Te
2661(7) keV
1.90(8) µs
(10+)
130m3Te
4375.4(18) keV
261(33) ns
131Te
52
79
130.9085239(21)
25.0(1) min
β-
131I
3/2+
131mTe
182.250(20) keV
30(2) h
β- (77.8%)
131I
11/2-
IT (22.2%)
131Te
132Te
52
80
131.908553(7)
3.204(13) d
β-
132I
0+
133Te
52
81
132.910955(26)
12.5(3) min
β-
133I
(3/2+)
133mTe
334.26(4) keV
55.4(4) min
β- (82.5%)
133I
(11/2-)
IT (17.5%)
133Te
134Te
52
82
133.911369(11)
41.8(8) min
β-
134I
0+
134mTe
1691.34(16) keV
164.1(9) ns
6+
135Te
52
83
134.91645(10)
19.0(2) s
β-
135I
(7/2-)
135mTe
1554.88(17) keV
510(20) ns
(19/2-)
136Te
52
84
135.92010(5)
17.63(8) s
β- (98.7%)
136I
0+
β-, n (1.3%)
135I
137Te
52
85
136.92532(13)
2.49(5) s
β- (97.01%)
137I
3/2-#
β-, n (2.99%)
136I
138Te
52
86
137.92922(22)#
1.4(4) s
β- (93.7%)
138I
0+
β-, n (6.3%)
137I
139Te
52
87
138.93473(43)#
500 ms>300 ns#
β-
139I
5/2-#
β-, n
138I
140Te
52
88
139.93885(32)#
300 ms>300 ns#
β-
140I
0+
β-, n
139I
141Te
52
89
140.94465(43)#
100 ms>300 ns# 
β-
141I
5/2-#
β-, n
140I
142Te
52
90
141.94908(64)#
50 ms>300 ns#
β-
142I
0+

**參考文獻**
 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=20180714022824  (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.