锰（原子量：54.938043(2)）共有32个同位素，其中有1个是稳定的。
Quick Facts 同位素, 衰变 ...
主要的锰同位素|
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| 标准原子质量 (Ar, 标准) | - 7001549380430000000♠54.938043(2)[1]
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More information 符号, Z ...
| 符号
|
Z
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N
|
同位素质量（u）
[n 1][n 2]
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半衰期
[n 1][n 2]
|
衰变
方式[2]
|
衰变
产物
[n 3]
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原子核
自旋[n 1]
|
相对丰度
（莫耳分率）
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| 激发能量[n 1][n 2]
|
| 46Mn
|
25
|
21
|
45.98672(12)#
|
37(3) ms
|
β+ (78%)
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46Cr
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(4+)
|
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| β+, p (22%)
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45V
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| β+, α (<1%)
|
42Ti
|
| β+, 2p (<1%)
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44Ti
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| 46mMn
|
150(100)# keV
|
1# ms
|
β+
|
46Cr
|
1-#
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| 47Mn
|
25
|
22
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46.97610(17)#
|
100(50) ms
|
β+ (96.6%)
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47Cr
|
5/2−#
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| β+, p (3.4%)
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46V
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| 48Mn
|
25
|
23
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47.96852(12)
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158.1(22) ms
|
β+ (99.71%)
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48Cr
|
4+
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| β+, p (.027%)
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47V
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| β+, α (6×10−4%)
|
44Ti
|
| 49Mn
|
25
|
24
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48.959618(26)
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382(7) ms
|
β+
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49Cr
|
5/2−
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| 50Mn
|
25
|
25
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49.9542382(11)
|
283.29(8) ms
|
β+
|
50Cr
|
0+
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| 50mMn
|
229(7) keV
|
1.75(3) min
|
β+
|
50Cr
|
5+
|
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| 51Mn
|
25
|
26
|
50.9482108(11)
|
46.2(1) min
|
β+
|
51Cr
|
5/2−
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|
| 52Mn
|
25
|
27
|
51.9455655(21)
|
5.591(3) d
|
β+
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52Cr
|
6+
|
|
| 52mMn
|
377.749(5) keV
|
21.1(2) min
|
β+ (98.25%)
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52Cr
|
2+
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| IT (1.75%)
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52Mn
|
| 53Mn
|
25
|
28
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52.9412901(9)
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3.7(4)×106 y
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ε
|
53Cr
|
7/2−
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痕量
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| 54Mn
|
25
|
29
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53.9403589(14)
|
312.03(3) d
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ε 99.99%
|
54Cr
|
3+
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| β− (2.9×10−4%)
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54Fe
|
| β+ (5.76×10−7%)
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54Cr
|
55
Mn
|
25
|
30
|
54.9380451(7)
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稳定
|
5/2−
|
1.0000
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| 56Mn
|
25
|
31
|
55.9389049(7)
|
2.5789(1) h
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β−
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56Fe
|
3+
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| 57Mn
|
25
|
32
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56.9382854(20)
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85.4(18) s
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β−
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57Fe
|
5/2−
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| 58Mn
|
25
|
33
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57.93998(3)
|
3.0(1) s
|
β−
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58Fe
|
1+
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| 58mMn
|
71.78(5) keV
|
65.2(5) s
|
β− (>99.9%)
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58Fe
|
(4)+
|
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| IT (<.1%)
|
58Mn
|
| 59Mn
|
25
|
34
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58.94044(3)
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4.59(5) s
|
β−
|
59Fe
|
(5/2)−
|
|
| 60Mn
|
25
|
35
|
59.94291(9)
|
51(6) s
|
β−
|
60Fe
|
0+
|
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| 60mMn
|
271.90(10) keV
|
1.77(2) s
|
β− (88.5%)
|
60Fe
|
3+
|
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| IT (11.5%)
|
60Mn
|
| 61Mn
|
25
|
36
|
60.94465(24)
|
0.67(4) s
|
β−
|
61Fe
|
(5/2)−
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|
| 62Mn
|
25
|
37
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61.94843(24)
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671(5) ms
|
β− (>99.9%)
|
62Fe
|
(3+)
|
|
| β−, n (<.1%)
|
61Fe
|
| 62mMn
|
0(150)# keV
|
92(13) ms
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|
|
(1+)
|
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| 63Mn
|
25
|
38
|
62.95024(28)
|
275(4) ms
|
β−
|
63Fe
|
5/2−#
|
|
| 64Mn
|
25
|
39
|
63.95425(29)
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88.8(25) ms
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β− (>99.9%)
|
64Fe
|
(1+)
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| β−, n (<.1%)
|
63Fe
|
| 64mMn
|
135(3) keV
|
>100 µs
|
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| 65Mn
|
25
|
40
|
64.95634(58)
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92(1) ms
|
β− (>99.9%)
|
65Fe
|
5/2−#
|
|
| β−, n (<.1%)
|
64Fe
|
| 66Mn
|
25
|
41
|
65.96108(43)#
|
64.4(18) ms
|
β− (>99.9%)
|
66Fe
|
|
|
| β−, n (<.1%)
|
65Fe
|
| 67Mn
|
25
|
42
|
66.96414(54)#
|
45(3) ms
|
β−
|
67Fe
|
5/2−#
|
|
| 68Mn
|
25
|
43
|
67.96930(64)#
|
28(4) ms
|
|
|
|
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| 69Mn
|
25
|
44
|
68.97284(86)#
|
14(4) ms
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|
5/2−#
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Close
画上#号的数据代表没有经过实验的证明，仅为理论推测。
Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. Standard atomic weights of the elements 2021 (IUPAC Technical Report). Pure and Applied Chemistry. 2022-05-04. ISSN 1365-3075. doi:10.1515/pac-2019-0603 （英语）.
- 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).
- 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 （页面存档备份，存于互联网档案馆）, Nuc. Phys. A 729, pp. 3-128 (2003).
- National Nuclear Data Center, Brookhaven National Laboratory. Information extracted from the NuDat 2.1 database （页面存档备份，存于互联网档案馆） (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.
