Vanadium

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Vanadium,  23V
Vanadium etched.jpg
General properties
Name, seembol vanadium, V
Pronunciation /vəˈndiəm/
və-NAY-dee-əm
Appearance blue-siller-grey metal
Vanadium in the periodic cairt
Hydrogen (diatomic nonmetal)
Helium (noble gas)
Lithium (alkali metal)
Beryllium (alkaline yird metal)
Boron (metalloid)
Carbon (polyatomic nonmetal)
Nitrogen (diatomic nonmetal)
Oxygen (diatomic nonmetal)
Fluorine (diatomic nonmetal)
Neon (noble gas)
Sodium (alkali metal)
Magnesium (alkaline yird metal)
Aluminium (post-transeetion metal)
Silicon (metalloid)
Phosphorus (polyatomic nonmetal)
Sulfur (polyatomic nonmetal)
Chlorine (diatomic nonmetal)
Argon (noble gas)
Potassium (alkali metal)
Calcium (alkaline yird metal)
Scandium (transeetion metal)
Titanium (transeetion metal)
Vanadium (transeetion metal)
Chromium (transeetion metal)
Manganese (transeetion metal)
Iron (transeetion metal)
Cobalt (transeetion metal)
Nickel (transeetion metal)
Copper (transeetion metal)
Zinc (transeetion metal)
Gallium (post-transeetion metal)
Germanium (metalloid)
Arsenic (metalloid)
Selenium (polyatomic nonmetal)
Bromine (diatomic nonmetal)
Krypton (noble gas)
Rubidium (alkali metal)
Strontium (alkaline yird metal)
Yttrium (transeetion metal)
Zirconium (transeetion metal)
Niobium (transeetion metal)
Molybdenum (transeetion metal)
Technetium (transeetion metal)
Ruthenium (transeetion metal)
Rhodium (transeetion metal)
Palladium (transeetion metal)
Silver (transeetion metal)
Cadmium (transeetion metal)
Indium (post-transeetion metal)
Tin (post-transeetion metal)
Antimony (metalloid)
Tellurium (metalloid)
Iodine (diatomic nonmetal)
Xenon (noble gas)
Caesium (alkali metal)
Barium (alkaline yird metal)
Lanthanum (lanthanide)
Cerium (lanthanide)
Praseodymium (lanthanide)
Neodymium (lanthanide)
Promethium (lanthanide)
Samarium (lanthanide)
Europium (lanthanide)
Gadolinium (lanthanide)
Terbium (lanthanide)
Dysprosium (lanthanide)
Holmium (lanthanide)
Erbium (lanthanide)
Thulium (lanthanide)
Ytterbium (lanthanide)
Lutetium (lanthanide)
Hafnium (transeetion metal)
Tantalum (transeetion metal)
Tungsten (transeetion metal)
Rhenium (transeetion metal)
Osmium (transeetion metal)
Iridium (transeetion metal)
Platinum (transeetion metal)
Gold (transeetion metal)
Mercury (transeetion metal)
Thallium (post-transeetion metal)
Lead (post-transeetion metal)
Bismuth (post-transeetion metal)
Polonium (post-transeetion metal)
Astatine (metalloid)
Radon (noble gas)
Francium (alkali metal)
Radium (alkaline yird metal)
Actinium (actinide)
Thorium (actinide)
Protactinium (actinide)
Uranium (actinide)
Neptunium (actinide)
Plutonium (actinide)
Americium (actinide)
Curium (actinide)
Berkelium (actinide)
Californium (actinide)
Einsteinium (actinide)
Fermium (actinide)
Mendelevium (actinide)
Nobelium (actinide)
Lawrencium (actinide)
Rutherfordium (transeetion metal)
Dubnium (transeetion metal)
Seaborgium (transeetion metal)
Bohrium (transeetion metal)
Hassium (transeetion metal)
Meitnerium (unkent chemical properties)
Darmstadtium (unkent chemical properties)
Roentgenium (unkent chemical properties)
Copernicium (transeetion metal)
Ununtrium (unkent chemical properties)
Flerovium (post-transeetion metal)
Ununpentium (unkent chemical properties)
Livermorium (unkent chemical properties)
Ununseptium (unkent chemical properties)
Ununoctium (unkent chemical properties)
-

V

Nb
titaniumvanadiumchromium
Atomic nummer 23
Staundart atomic wicht (±) (Ar) 50.9415(1)
Element category   transeetion metal
Group, block group 5, d-block
Period period 4
Electron configuration [Ar] 3d3 4s2
per shell
2, 8, 11, 2
Pheesical properties
Phase solid
Meltin pynt 2183 K ​(1910 °C, ​3470 °F)
Boilin pynt 3680 K ​(3407 °C, ​6165 °F)
Density near r.t. 6.0 g/cm3
when liquid, at m.p. 5.5 g/cm3
Heat o fusion 21.5 kJ/mol
Heat o 459 kJ/mol
Molar heat capacity 24.89 J/(mol·K)
 pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 2101 2289 2523 2814 3187 3679
Atomic properties
Oxidation states 5, 4, 3, 2, 1, -1amphoteric oxide
Electronegativity Pauling scale: 1.63
energies
(mair)
Atomic radius empirical: 134 pm
Covalent radius 153±8 pm
Miscellanea
Crystal structur body-centered cubic (bcc)
Body-centered cubic crystal structure for vanadium
Speed o soond thin rod 4560 m/s (at 20 °C)
Thermal expansion 8.4 µm/(m·K) (at 25 °C)
Thermal conductivity 30.7 W/(m·K)
Electrical resistivity 197 n Ω·m (at 20 °C)
Magnetic orderin paramagnetic
Young's modulus 128 GPa
Shear modulus 47 GPa
Bulk modulus 160 GPa
Poisson ratio 0.37
Mohs haurdness 6.7
CAS Registry Nummer 7440-62-2
History
Discovery Andrés Manuel del Río (1801)
First isolation Nils Gabriel Sefström (1830)
Named by Nils Gabriel Sefström (1830)
Maist stable isotopes
Main article: Isotopes o vanadium
iso NA hauf-life DM DE (MeV) DP
48V syn 15.9735 d β+ 4.0123 48Ti
49V syn 330 d ε 0.6019 49Ti
50V 0.25% 1.5×1017y ε 2.2083 50Ti
β 1.0369 50Cr
51V 99.75% 51V is stable wi 28 neutrons
· references

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.