钪（原子量：44.955907(4)）共有37个同位素，其中有1个是稳定的。
Quick Facts 同位素, 衰变 ...
主要的钪同位素|
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| 标准原子质量 (Ar, 标准) | - 7001449559070000000♠44.955907(4)[1]
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Close
More information 符号, Z ...
| 符号
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Z
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N
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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]
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衰变
产物
[n 3]
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原子核
自旋[n 1]
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相对丰度
（莫耳分率）[n 2]
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| 激发能量[n 2]
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| 39Sc
|
21
|
18
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38.984790(26)
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<300 ns
|
p
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38Ca
|
(7/2−)#
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| 40Sc
|
21
|
19
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39.977967(3)
|
182.3(7) ms
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β+ (99.54%)
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40Ca
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4-
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| β+, p (.44%)
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39K
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| β+, α (.017%)
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36Ar
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| 41Sc
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21
|
20
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40.96925113(24)
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596.3(17) ms
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β+
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41Ca
|
7/2−
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| 42Sc
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21
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21
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41.96551643(29)
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681.3(7) ms
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β+
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42Ca
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0+
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| 42mSc
|
616.28(6) keV
|
61.7(4) s
|
β+
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42Ca
|
(7,5,6)+
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| 43Sc
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21
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22
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42.9611507(20)
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3.891(12) h
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β+
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43Ca
|
7/2−
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| 43m1Sc
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151.4(2) keV
|
438(7) µs
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3/2+
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| 43m2Sc
|
3123.2(3) keV
|
470(4) ns
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(19/2)−
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|
44
Sc
|
21
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23
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43.9594028(19)
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3.97(4) h
|
β+
|
44Ca
|
2+
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| 44m1Sc
|
67.8680(14) keV
|
154.2(8) ns
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|
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1−
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| 44m2Sc
|
270.95(20) keV
|
58.61(10) h
|
IT (98.8%)
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44Sc
|
6+
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|
| β+ (1.2%)
|
44Ca
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| 44m3Sc
|
146.224(22) keV
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50.4(7) µs
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|
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0-
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|
45
Sc
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21
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24
|
44.9559119(9)
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稳定
|
7/2−
|
1.0000
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| 45mSc
|
12.40(5) keV
|
318(7) ms
|
IT
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45Sc
|
3/2+
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| 46Sc
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21
|
25
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45.9551719(9)
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83.79(4) d
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β−
|
46Ti
|
4+
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| 46m1Sc
|
52.011(1) keV
|
9.4(8) µs
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|
|
6+
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| 46m2Sc
|
142.528(7) keV
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18.75(4) s
|
IT
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46Sc
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1−
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| 47Sc
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21
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26
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46.9524075(22)
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3.3492(6) d
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β−
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47Ti
|
7/2−
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| 47mSc
|
766.83(9) keV
|
272(8) ns
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(3/2)+
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| 48Sc
|
21
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27
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47.952231(6)
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43.67(9) h
|
β−
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48Ti
|
6+
|
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| 49Sc
|
21
|
28
|
48.950024(4)
|
57.2(2) min
|
β−
|
49Ti
|
7/2−
|
|
| 50Sc
|
21
|
29
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49.952188(17)
|
102.5(5) s
|
β−
|
50Ti
|
5+
|
|
| 50mSc
|
256.895(10) keV
|
350(40) ms
|
IT (97.5%)
|
50Sc
|
2+,3+
|
|
| β− (2.5%)
|
50Ti
|
| 51Sc
|
21
|
30
|
50.953603(22)
|
12.4(1) s
|
β−
|
51Ti
|
(7/2)−
|
|
| 52Sc
|
21
|
31
|
51.95668(21)
|
8.2(2) s
|
β−
|
52Ti
|
3(+)
|
|
| 53Sc
|
21
|
32
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52.95961(32)#
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>3 s
|
β− (>99.9%)
|
53Ti
|
(7/2−)#
|
|
| β−, n (<.1%)
|
52Ti
|
| 54Sc
|
21
|
33
|
53.96326(40)
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260(30) ms
|
β− (>99.9%)
|
54Ti
|
3+#
|
|
| β−, n (<.1%)
|
53Ti
|
| 54mSc
|
110(3) keV
|
7(5) µs
|
|
|
(5+)
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| 55Sc
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21
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34
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54.96824(79)
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0.115(15) s
|
β− (>99.9%)
|
55Ti
|
7/2−#
|
|
| β−, n (<.1%)
|
54Ti
|
| 56Sc
|
21
|
35
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55.97287(75)#
|
35(5) ms
|
β−
|
56Ti
|
(1+)
|
|
| 57Sc
|
21
|
36
|
56.97779(75)#
|
13(4) ms
|
β−
|
57Ti
|
7/2−#
|
|
| 58Sc
|
21
|
37
|
57.98371(86)#
|
12(5) ms
|
β−
|
58Ti
|
(3+)#
|
|
| 59Sc
|
21
|
38
|
58.98922(97)#
|
10# ms
|
β−, n
|
58Ti
|
7/2−#
|
|
| β−
|
59Ti
|
| 60Sc
|
21
|
39
|
59.99571(97)#
|
3# ms
|
|
|
3+#
|
|
| 61Sc
|
21
|
40
|
(60.99955348)#
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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.
