Vanadium: isotope data

Vanadium has two isotopes and one of them, V-50, has a very low natural abundance (0.25%). V-50 is occasionally used for research purposes. V-51 is used in diabetes and metabolism studies.

Naturally occurring isotopes

This table shows information about naturally occuring isotopes, their atomic masses, their natural abundances, their nuclear spins, and their magnetic moments. Further data for radioisotopes (radioactive isotopes) of vanadium are listed (including any which occur naturally) below.
Isotope Mass / Da Natural abundance (atom %) Nuclear spin (I) Magnetic moment (μ/μN)
50V 49.9471609 (17) 0.250 (4) 6 3.34745
51V 50.9439617 (17) 99.750 (4) 7/2 5.1514

In the above, the most intense ion is set to 100% since this corresponds best to the output from a mass spectrometer. This is not to be confused with the relative percentage isotope abundances which totals 100% for all the naturally occurring isotopes.

Radiosotope data

Further data for naturally occuring isotopes of vanadium are listed above. This table gives information about some radiosotopes of vanadium, their masses, their half-lives, their modes of decay, their nuclear spins, and their nuclear magnetic moments.
Isotope Mass / Da Half-life Mode of decay Nuclear spin Nuclear magnetic moment
47V 46.954907 32.6 m EC to 47Ti 3/2
48V 47.952254 15.98 d EC to 48Ti 4 2.01
49V 48.948517 337 d EC to 49Ti 7/2 4.47
52V 51.944780 3.76 m β- to 52Cr 3
53V 52.944342 1.61 m β- to 53Cr 7/2

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  1. Naturally occurring isotope abundances: Commission on Atomic Weights and Isotopic Abundances report for the International Union of Pure and Applied Chemistry in Isotopic Compositions of the Elements 1989, Pure and Applied Chemistry, 1998, 70, 217. [Copyright 1998 IUPAC]
  2. For further information about radioisotopes see Jonghwa Chang's (Korea Atomic Energy Research Institute) Table of the Nuclides
  3. Masses, nuclear spins, and magnetic moments: I. Mills, T. Cvitas, K. Homann, N. Kallay, and K. Kuchitsu in Quantities, Units and Symbols in Physical Chemistry, Blackwell Scientific Publications, Oxford, UK, 1988. [Copyright 1988 IUPAC]

NMR Properties of vanadium

Common reference compound: VOCl3, neat/C6D6.

Table of NMR-active nucleus propeties of vanadium
  Isotope 1 Isotope 2 Isotope 3
Isotope 50V 51V
Natural abundance /% 0.250 99.750
Spin (I) 6 7/2
Frequency relative to 1H = 100 (MHz) 9.970309 26.302948
Receptivity, DP, relative to 1H = 1.00 0.000139 0.383
Receptivity, DC, relative to 13C = 1.00 0.818 2250
Magnetogyric ratio, γ (107 rad T‑1 s-1) 2.6706490 7.0455117
Magnetic moment, μ (μN) 3.6137570 5.8380835
Nuclear quadrupole moment, Q/millibarn 210(40) -52(10)
Line width factor, 1056 l (m4) 17 3.7


  1. R.K. Harris in Encyclopedia of Nuclear Magnetic Resonance, D.M. Granty and R.K. Harris, (eds.), vol. 5, John Wiley & Sons, Chichester, UK, 1996. I am grateful to Professor Robin Harris (University of Durham, UK) who provided much of the NMR data, which are copyright 1996 IUPAC, adapted from his contribution contained within this reference.
  2. J. Mason in Multinuclear NMR, Plenum Press, New York, USA, 1987. Where given, data for certain radioactive nuclei are from this reference.
  3. P. Pyykkö, Mol. Phys., 2008, 106, 1965-1974.
  4. P. Pyykkö, Mol. Phys., 2001, 99, 1617-1629.
  5. P. Pyykkö, Z. Naturforsch., 1992, 47a, 189. I am grateful to Professor Pekka Pyykkö (University of Helsinki, Finland) who provided the nuclear quadrupole moment data in this and the following two references.
  6. D.R. Lide, (ed.), CRC Handbook of Chemistry and Physics 1999-2000 : A Ready-Reference Book of Chemical and Physical Data (CRC Handbook of Chemistry and Physics, CRC Press, Boca Raton, Florida, USA, 79th edition, 1998.
  7. P. Pyykkö, personal communication, 1998, 204, 2008, 2010.

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