See also: List of individual Vanadium isotopes (and general data sources).
General data
Name of the isotope:Vanadium-66; V-66Symbol:66V or 6623VMass number A:66 (= number of nucleons)Atomic number Z:23 (= number of protons)Neutrons N:43Nucleon pairing (Z - N):odd - oddNuclear ratio (N/Z ratio):1.8695652173913 (= neutron-proton ratio)Neutron excess (N-Z):20Isotopic mass:65.99398(54) u (atomic weight of Vanadium-66)Nuclide mass:65.9813629 u (calculated nuclear mass without electrons)Mass excess:-5.60759 MeVMass defect:0.55858712400001 u (per nucleus)Nuclear binding energy:520.32055448 MeV (per nucleus) 7.88364476 MeV (average binding energy per nucleon)Separation energy:SN = 1.90(71) MeV (first neutron)Half-life:360 nsDecay constant λ:1925408.8348887 s-1Specific activity α:1.756991020127 × 10+28 Bq g-1 4.74862437872 × 10+17 Ci g-1Spin and parity: (nuclear angular momentum)Year of discovery:2009
The following table shows the atomic nuclei that are isotonic (same neutron number N = 43) and isobaric (same nucleon number A = 66) with Vanadium-66. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.