WebElements Periodic Table of the Elements | Vanadium

Chemical reactions of the elements

Reaction of vanadium with air

Vanadium metal reacts with excess oxygen, O₂, upon heating to form vanadium(V) oxide, V₂O₅. When prepared in this way, V₂O₅ is sometimes contamined by other vanadium oxides.

4V(s) + 5O₂(g) → 2V₂O₅(s) [yellow-orange]

Reaction of vanadium with water

The surface of vanadium metal is protected by an oxide layer and does not reacts with water under normal conditions.

Reaction of vanadium with the halogens

Vanadium reacts with fluorine, F₂ upon warming to form vanadium(V) fluoride. The other vanadium pentahalides appear not to be known.

2V(s) + 5F₂(g) → 2VF₅(l) [colourless]

Reaction of vanadium with acids

Reaction of vanadium with bases

Vanadium metal is resistant to attack by molten alkali.

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Ti	V	Cr
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Vanadium
- Essential data: names, symbol, atomic number, and atomic weight; block, period, and group in periodic table; description; standard state; registry number; and isolation
- History: meaning of name; discovery; and history of the element
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Vanadium around us
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- Geology: Abundance of elements in the universe; the sun; meteorites; Earth's crust; oceans; and streams
- Biology: Abundance in humans; biological role; and health hazards)
Vanadium compounds
- Compounds: halides, oxides, sulfides, hydrides, and complexes; lattice energies; and reduction potentials
- Electronegativities: Pauling; Sanderson; Allred Rochow; Mulliken-Jaffe; and Allen
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Element properties
- Physics properties: Boiling point; melting point; density; molar volume; thermal conductivity; and electrical resistivity; bulk modulus; critical temperature; superconductivity temperature; hardness (mineralogical, Brinell, and Vickers); linear expansion coefficient; Poisson's ratio; reflectivity; refractive index; rigidity modulus; Young's modulus; velocity of sound
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- Reactions of calcium: reactions of vanadium with air; water; halogens; acids; and bases
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- Thermochemistry: enthalpies of atomization, fusion, and vaporization; thermodynamic properties
Atom properties
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- Atom sizes: atomic radius; Shannon and Pauling ionic radii; covalent radius; metallic radius; element bond length; and Van der Waals radius
- Atomic orbital properties: effective nuclear charge; electron binding energies; and valence orbital radii maxima
Nuclear properties
- Isotopes: isotope abundances; radioactive isotopes; isotope masses; nuclear spins; and nuclear magnetic moment
- NMR properties: frequencies; isotopes; magnetogyric ratios; quadrupole moments; receptivities; and relative sensitivities

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