Vanadium-51

Properties and data of the isotope ⁵¹V.

Contents

General data

Name of the isotope:Vanadium-51; V-51Symbol:⁵¹V or 5123VMass number A:51 (= number of nucleons)Atomic number Z:23 (= number of protons)Neutrons N:28Isotopic mass:50.943957(6) u (atomic weight of Vanadium-51)Nuclide mass:50.9313399 u (calculated nuclear mass without electrons)Mass excess:-52.20372 MeVMass defect:0.478636384 u (per nucleus)Nuclear binding energy:445.84691988 MeV (per nucleus)
8.74209647 MeV (average binding energy per nucleon)Separation energy:S_N = 11.05115(8) MeV (first neutron)
S_P = 8.0611(4) MeV (first proton)Half-life:stableSpin and parity:
(nuclear angular momentum)7/2-Magnetic dipole moment:μ(μ_N) = +5.1464(7)Charge radius:3.6002(22) femtometer fmMirror nucleus:Nickel-51Year of discovery:1924

Parent Nuclides

Direct parent isotopes are: ⁵¹Cr, ⁵¹Ti.

Occurrence

Comparison of the natural Vanadium isotopes including isotopic abundance (mole fraction of the isotope mixture in percent):

	Atomic Mass m_a	Quantity	Half-life	Spin
Vanadium Isotopic mixture	50.9415 u	100 %
Isotope ⁵⁰V	49.947156(6) u	0.0250(10) %	2.65 × 10¹⁷ a	6+
Isotope ⁵¹V	50.943957(6) u	99.750(10) %	stable	7/2-

NMR data

Nuclear magnetic properties of the NMR active Nuclide ⁵¹V

Isotope:⁵¹V-NMRQuantity:99.750(10) %Spin:7/2-Nuclearmagnetic moment
μ/μ_N:+5.1464(7)Gyromagnetic ratio γ:7.0453 · 10⁷ rad T^-1 s^-1Nuclear g-factor:g_l = 1.4704Quadrupole moment Q:- 0.052(10) barn (100 fm²)Resonance frequency:v₀ = 11.2133 at 1 TRelative Sensitivity:0.38360 (H₀ = const.)
5.5307 (v₀ = const.)
[related to ¹H = 1.000]

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 28) and isobaric (same nucleon number A = 51) with Vanadium-51. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 28	Isobar A = 51
11	³⁹Na
12	⁴⁰Mg
13	⁴¹Al
14	⁴²Si
15	⁴³P
16	⁴⁴S
17	⁴⁵Cl	⁵¹Cl
18	⁴⁶Ar	⁵¹Ar
19	⁴⁷K	⁵¹K
20	⁴⁸Ca	⁵¹Ca
21	⁴⁹Sc	⁵¹Sc
22	⁵⁰Ti	⁵¹Ti
23	⁵¹V	⁵¹V
24	⁵²Cr	⁵¹Cr
25	⁵³Mn	⁵¹Mn
26	⁵⁴Fe	⁵¹Fe
27	⁵⁵Co	⁵¹Co
28	⁵⁶Ni	⁵¹Ni
29	⁵⁷Cu
30	⁵⁸Zn
31	⁵⁹Ga
32	⁶⁰Ge