# Isotopes of vanadium

Naturally occurring vanadium ($_{23}$V) is composed of one stable isotope $^{51}$V and one radioactive isotope $^{50}$V with a half-life of 2.71×10$^{17}$ years. 24 artificial radioisotopes have been characterized (in the range of mass number between 40 and 65) with the most stable being $^{49}$V with a half-life of 330 days, and $^{48}$V with a half-life of 15.9735 days. All of the remaining radioactive isotopes have half-lives shorter than an hour, the majority of them below 10 seconds, the least stable being $^{42}$V with a half-life shorter than 55 nanoseconds, with all of the isotopes lighter than it, and none of the heavier, have unknown half-lives. In 4 isotopes, metastable excited states were found (including 2 metastable states for $^{60}$V), which adds up to 5 meta states.
The primary decay mode before the most abundant stable isotope $^{51}$V is electron capture. The next most common mode is beta decay. The primary decay products before $^{51}$V are element 22 (titanium) isotopes and the primary products after are element 24 (chromium) isotopes.

## List of isotopes

| Nuclide | Z | N | Isotopic mass (Da) | Half-life | Decay mode | Daughter isotope | Spin and parity | Natural abundance (mole fraction) | Natural abundance (mole fraction) |
| Nuclide | Excitation energy | Excitation energy | Excitation energy | Half-life | Decay mode | Daughter isotope | Spin and parity | Normal proportion | Range of variation |
| $^{43}$V | 23 | 20 | 42.980766(46) | 79.3(24) ms | β$^+$ (>97.5%) | $^{43}$Ti | 7/2−# | | |
| $^{43}$V | 23 | 20 | 42.980766(46) | 79.3(24) ms | β$^+$, p (<2.5%) | $^{42}$Sc | 7/2−# | | |
| $^{44}$V | 23 | 21 | 43.9744410(78) | 111(7) ms | β$^+$ | $^{44}$Ti | (2)+ | | |
| $^{44}$V | 23 | 21 | 43.9744410(78) | 111(7) ms | β$^+$, α (?%) | $^{40}$Ca | (2)+ | | |
| $^{44m}$V | 271(9) keV | 271(9) keV | 271(9) keV | 150(3) ms | β$^+$ | $^{44}$Ti | (6)+ | | |
| $^{45}$V | 23 | 22 | 44.96576850(93) | 547(6) ms | β$^+$ | $^{45}$Ti | 7/2− | | |
| $^{45m}$V | 56.8(6) keV | 56.8(6) keV | 56.8(6) keV | 512(13) ns | IT | $^{45}$V | (3/2−) | | |
| $^{46}$V | 23 | 23 | 45.96019739(14) | 422.62(5) ms | β$^+$ | $^{46}$Ti | 0+ | | |
| $^{46m}$V | 801.46(10) keV | 801.46(10) keV | 801.46(10) keV | 1.02(7) ms | IT | $^{46}$V | 3+ | | |
| $^{47}$V | 23 | 24 | 46.95490356(12) | 32.6(3) min | β$^+$ | $^{47}$Ti | 3/2− | | |
| $^{48}$V | 23 | 25 | 47.9522509(10) | 15.9735(25) d | β$^+$ | $^{48}$Ti | 4+ | | |
| $^{49}$V | 23 | 26 | 48.94851051(88) | 330(15) d | EC | $^{49}$Ti | 7/2− | | |
| $^{50}$V | 23 | 27 | 49.947156681(99) | 2.71(13)×10$^{17}$ y | β$^+$ | $^{50}$Ti | 6+ | 0.00250(10) | |
| $^{51}$V | 23 | 28 | 50.94395766(10) | Stable | Stable | Stable | 7/2− | 0.99750(10) | |
| $^{52}$V | 23 | 29 | 51.94477364(17) | 3.743(5) min | β$^−$ | $^{52}$Cr | 3+ | | |
| $^{53}$V | 23 | 30 | 52.9443349(33) | 1.543(14) min | β$^−$ | $^{53}$Cr | 7/2− | | |
| $^{54}$V | 23 | 31 | 53.946432(12) | 49.8(5) s | β$^−$ | $^{54}$Cr | 3+ | | |
| $^{54m}$V | 108.0(10) keV | 108.0(10) keV | 108.0(10) keV | 900(500) ns | IT | $^{54}$V | (5)+ | | |
| $^{55}$V | 23 | 32 | 54.947262(29) | 6.54(15) s | β$^−$ | $^{55}$Cr | 7/2−# | | |
| $^{56}$V | 23 | 33 | 55.95042(19) | 216(4) ms | β$^−$ | $^{56}$Cr | (1+) | | |
| $^{57}$V | 23 | 34 | 56.952297(91) | 350(10) ms | β$^−$ | $^{57}$Cr | (7/2−) | | |
| $^{58}$V | 23 | 35 | 57.95660(10) | 191(10) ms | β$^−$ | $^{58}$Cr | (1+) | | |
| $^{59}$V | 23 | 36 | 58.95962(15) | 95(6) ms | β$^−$ (<97%) | $^{59}$Cr | (5/2−) | | |
| $^{59}$V | 23 | 36 | 58.95962(15) | 95(6) ms | β$^−$, n (>3%) | $^{58}$Cr | (5/2−) | | |
| $^{60}$V | 23 | 37 | 59.96448(20) | 122(18) ms | β$^−$ (>99.9%) | $^{60}$Cr | 3+# | | |
| $^{60m1}$V | 0(150)# keV | 0(150)# keV | 0(150)# keV | 40(15) ms | β$^−$ | $^{60}$Cr | 1+# | | |
| $^{60m2}$V | 203.7(7) keV | 203.7(7) keV | 203.7(7) keV | 230(24) ns | IT | $^{60}$V | (4+) | | |
| $^{61}$V | 23 | 38 | 60.96760(25) | 48.2(6) ms | β$^−$ (85.5%) | $^{61}$Cr | (3/2−) | | |
| $^{61}$V | 23 | 38 | 60.96760(25) | 48.2(6) ms | β$^−$, n (14.5%) | $^{60}$Cr | (3/2−) | | |
| $^{62}$V | 23 | 39 | 61.97293(28) | 33.6(23) ms | β$^−$ | $^{62}$Cr | 3+# | | |
| $^{63}$V | 23 | 40 | 62.97666(37) | 19.6(9) ms | β$^−$ (<65%) | $^{63}$Cr | (3/2−,5/2−) | | |
| $^{63}$V | 23 | 40 | 62.97666(37) | 19.6(9) ms | β$^−$, n (>35%) | $^{62}$Cr | (3/2−,5/2−) | | |
| $^{64}$V | 23 | 41 | 63.98248(43)# | 15(2) ms | β$^−$ | $^{64}$Cr | (1,2) | | |
| $^{64m}$V | 81.0(7) keV | 81.0(7) keV | 81.0(7) keV | <1 μs | IT | $^{64}$V | | | |
| $^{65}$V | 23 | 42 | 64.98700(54)# | 14# ms [>620 ns] | | | 5/2−# | | |
| $^{66}$V | 23 | 43 | 65.99324(54)# | 10# ms [>620 ns] | | | | | |
| $^{67}$V | 23 | 44 | 66.99813(64)# | 8# ms [>620 ns] | | | 5/2−# | | |
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* ↑ $^m$V – Excited nuclear isomer.
* ↑ ( ) – Uncertainty (1σ) is given in concise form in parentheses after the corresponding last digits.
* ↑ # – Atomic mass marked #: value and uncertainty derived not from purely experimental data, but at least partly from trends from the Mass Surface (TMS).
* ↑ Bold half-life – nearly stable, half-life longer than age of universe.
* 1 2 3 # – Values marked # are not purely derived from experimental data, but at least partly from trends of neighboring nuclides (TNN).
* ↑ Modes of decay: EC:Electron capture IT:Isomeric transition p:Proton emission
* ↑ Bold symbol as daughter – Daughter product is stable.
* ↑ ( ) spin value – Indicates spin with weak assignment arguments.
* ↑ Primordial radionuclide
* ↑ See also Vanadium-51 nuclear magnetic resonance
* ↑ Order of ground state and isomer is uncertain.