钒（原子量：50.9415(1)）共有31个同位素，其中有1个是稳定的。
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| 符号
|
Z
|
N
|
同位素质量（u）
[n 1][n 2]
|
半衰期
[n 1][n 2][n 3]
|
衰变
方式[2]
|
衰变
产物
[n 4]
|
原子核
自旋[n 1]
|
相对丰度
（莫耳分率）[3][n 2]
|
相对丰度
的变化量
（莫耳分率）
|
| 激发能量[n 1][n 2]
|
| 40V
|
23
|
17
|
40.01109(54)#
|
|
p
|
39Ti
|
2−#
|
|
|
| 41V
|
23
|
18
|
40.99978(22)#
|
|
p
|
40Ti
|
7/2−#
|
|
|
| 42V
|
23
|
19
|
41.99123(21)#
|
<55 ns
|
p
|
41Ti
|
2−#
|
|
|
| 43V
|
23
|
20
|
42.98065(25)#
|
80# ms
|
β+
|
43Ti
|
7/2−#
|
|
|
| 44V
|
23
|
21
|
43.97411(13)
|
111(7) ms
|
β+ (>99.9%)
|
44Ti
|
(2+)
|
|
|
| β−, α (<.1%)
|
40Ca
|
| 44mV
|
270(100)# keV
|
150(3) ms
|
β+
|
44Ti
|
(6+)
|
|
|
| 45V
|
23
|
22
|
44.965776(18)
|
547(6) ms
|
β+
|
45Ti
|
7/2−
|
|
|
| 46V
|
23
|
23
|
45.9602005(11)
|
422.50(11) ms
|
β+
|
46Ti
|
0+
|
|
|
| 46mV
|
801.46(10) keV
|
1.02(7) ms
|
IT
|
46V
|
3+
|
|
|
| 47V
|
23
|
24
|
46.9549089(9)
|
32.6(3) min
|
β+
|
47Ti
|
3/2−
|
|
|
| 48V
|
23
|
25
|
47.9522537(27)
|
15.9735(25) d
|
β+
|
48Ti
|
4+
|
|
|
| 49V
|
23
|
26
|
48.9485161(12)
|
329(3) d
|
ε
|
49Ti
|
7/2−
|
|
|
| 50V[n 5]
|
23
|
27
|
49.9471585(11)
|
1.4(4)×1017 y
|
β+ (83%)
|
50Ti
|
6+
|
0.00250(10)
|
0.002487–0.002502
|
| β− (17%)
|
50Cr
|
| 51V
|
23
|
28
|
50.9439595(11)
|
稳定
|
7/2−
|
0.99750(10)
|
0.997498–0.997513
|
| 52V
|
23
|
29
|
51.9447755(11)
|
3.743(5) min
|
β−
|
52Cr
|
3+
|
|
|
| 53V
|
23
|
30
|
52.944338(3)
|
1.60(4) min
|
β−
|
53Cr
|
7/2−
|
|
|
| 54V
|
23
|
31
|
53.946440(16)
|
49.8(5) s
|
β−
|
54Cr
|
3+
|
|
|
| 54mV
|
108(3) keV
|
900(500) ns
|
|
|
(5+)
|
|
|
| 55V
|
23
|
32
|
54.94723(11)
|
6.54(15) s
|
β−
|
55Cr
|
(7/2−)#
|
|
|
| 56V
|
23
|
33
|
55.95053(22)
|
216(4) ms
|
β− (>99.9%)
|
56Cr
|
(1+)
|
|
|
| β−, n
|
55Cr
|
| 57V
|
23
|
34
|
56.95256(25)
|
0.35(1) s
|
β− (>99.9%)
|
57Cr
|
(3/2−)
|
|
|
| β−, n (<.1%)
|
56Cr
|
| 58V
|
23
|
35
|
57.95683(27)
|
191(8) ms
|
β− (>99.9%)
|
58Cr
|
3+#
|
|
|
| β−, n (<.1%)
|
57Cr
|
| 59V
|
23
|
36
|
58.96021(33)
|
75(7) ms
|
β− (>99.9%)
|
59Cr
|
7/2−#
|
|
|
| β−, n (<.1%)
|
58Cr
|
| 60V
|
23
|
37
|
59.96503(51)
|
122(18) ms
|
β− (>99.9%)
|
60Cr
|
3+#
|
|
|
| β−, n (<.1%)
|
59Cr
|
| 60m1V
|
0(150)# keV
|
40(15) ms
|
|
|
1+#
|
|
|
| 60m2V
|
101(1) keV
|
>400 ns
|
|
|
|
|
|
| 61V
|
23
|
38
|
60.96848(43)#
|
47.0(12) ms
|
β−
|
61Cr
|
7/2−#
|
|
|
| 62V
|
23
|
39
|
61.97378(54)#
|
33.5(20) ms
|
β−
|
62Cr
|
3+#
|
|
|
| 63V
|
23
|
40
|
62.97755(64)#
|
17(3) ms
|
β−
|
63Cr
|
(7/2−)#
|
|
|
| 64V
|
23
|
41
|
63.98347(75)#
|
10# ms [>300 ns]
|
|
|
|
|
|
| 65V
|
23
|
42
|
64.98792(86)#
|
10# ms
|
|
|
5/2−#
|
|
|
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.
