Vanadium

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Vanadium,  23V
Vanadium etched.jpg
General properties
Appearanceblue-siller-grey metal
Staundart atomic wecht (Ar, staundart)50.9415(1)[1]
Vanadium in the periodic cairt
Hydrogen Helium
Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon
Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon
Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Airn Cobalt Nickel Capper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Siller (element) Cadmium Indium Tin Antimony Tellurium Iodine Xenon
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gowd Mercur (element) Thallium Leid (element) Bismuth Polonium Astatine Radon
Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Ununtrium Flerovium Ununpentium Livermorium Ununseptium Ununoctium
-

V

Nb
titaniumvanadiumchromium
Atomic nummer (Z)23
Groupgroup 5
Periodperiod 4
Element category  transition metal
Blockd-block
Electron confeeguration[Ar] 3d3 4s2
Electrons per shell
2, 8, 11, 2
Pheesical properties
Phase (at STP)solit
Meltin pynt2183 K ​(1910 °C, ​3470 °F)
Bylin pynt3680 K ​(3407 °C, ​6165 °F)
Density (near r.t.)6.0 g/cm3
when liquid (at m.p.)5.5 g/cm3
Heat o fusion21.5 kJ/mol
Heat o vapourisation459 kJ/mol
Molar heat capacity24.89 J/(mol·K)
Vapour pressur
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 2101 2289 2523 2814 3187 3679
Atomic properties
Oxidation states5, 4, 3, 2, 1, -1 amphoteric oxide
ElectronegativityPauling scale: 1.63
Ionisation energies
Atomic radiusempirical: 134 pm
Covalent radius153±8 pm
Coloyr lines in a spectral range
Spectral lines o Vanadium
Miscellanea
Creestal structurbody-centred cubic (bcc)
Body-centered cubic creestal structur for vanadium
Speed o soond thin rod4560 m/s (at 20 °C)
Thermal expansion8.4 µm/(m·K) (at 25 °C)
Thermal conductivity30.7 W/(m·K)
Electrical resistivity197 n Ω·m (at 20 °C)
Magnetic orderinparamagnetic
Young's modulus128 GPa
Shear modulus47 GPa
Bouk modulus160 GPa
Poisson ratio0.37
Mohs haurdness6.7
CAS Nummer7440-62-2
History
DiskiveryAndrés Manuel del Río (1801)
First isolationNils Gabriel Sefström (1830)
Named biNils Gabriel Sefström (1830)
Main isotopes o vanadium
Iso­tope Abun­dance Hauf-life (t1/2) Decay mode Pro­duct
48V syn 15.9735 d β+ 48Ti
49V syn 330 d ε 49Ti
50V 0.25% 1.5×1017y ε 50Ti
β 50Cr
51V 99.75% stable
| references | in Wikidata

Vanadium is a chemical element wi the seembol V an atomic nummer 23. It is a haird, sillery gray, ductile an malleable transeetion metal. The element is foond anly in chemically combined furm in naitur, but ance isolatit airtifeecially, the formation o an oxide layer stabilizes the free metal somewhit against further oxidation.

  1. Meija, J.; et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry. 88 (3): 265–91. doi:10.1515/pac-2015-0305.