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vanadium
Image: Wikimedia Commons

vanadium

Chemical element with symbol V and atomic number 23

Chemical elementchemical elementlithophile elementmetalQ722

Also known as element 23 · 23V · V

Symbol
Atomic number
  • 23
Mass
Melting point
  • 1,887°C
Boiling point
  • 3,377°C
Density
  • 6,377.54 kg/m³
Discovered by
Discovered
  • 1801

Overview

All data

207 statements · 16% with external sources · numbers in brackets are citations

Oxidation state
  • 2
  • 3
  • 4
  • 5
  • -1
  • 1
  • -3
  • 0
Named after
Canonical SMILES
Formula
Subject has role
Unicode character
Part of
Ionic radius
  • 0.76 ångström charge number: 2 · coordination number: 6
  • 0.64 ångström charge number: 3 · coordination number: 6
  • 0.53 ångström charge number: 4 · coordination number: 5
  • 0.58 ångström charge number: 4 · coordination number: 6
  • 0.72 ångström charge number: 4 · coordination number: 8
  • 0.36 ångström charge number: 5 · coordination number: 4
  • 0.46 ångström charge number: 5 · coordination number: 5
  • 0.54 ångström charge number: 5 · coordination number: 6
Electron configuration
  • [Ar] 3d³ 4s²
Made from material
Electronegativity
  • 1.63
Space group
Crystal system
Bulk modulus
  • 181B Pa
Shear modulus
  • 40.7B Pa
Poisson's ratio
  • 0.395
Thermal conductivity
  • 31 watt per metre kelvin
Electrical conductivity
  • 5,000,000 siemens per metre
Specific heat capacity
  • 489 joule per kilogram kelvin
Speed of sound
  • 4,560 m/s
Electrical resistivity
  • 1.97e-7 ohm metre
Point group
Standard enthalpy of formation
  • 515.47 kilojoule per mole state of matter: gas
  • 17.29 kilojoule per mole state of matter: liquid
Standard molar entropy
  • 182.31 joule per mole kelvin state of matter: gas
  • 36.13 joule per mole kelvin state of matter: liquid
  • 28.93 joule per mole kelvin state of matter: solid
Mohs' hardness
  • 7
Has characteristic
Linear thermal expansion coefficient
  • 8.77 micrometre per metre kelvin temperature: 20°C
Ionization energy
Subclass of
IPA transcription
Atomic radius
  • 135 picometre
Covalent radius
  • 153 picometre

On other databases

82 identifiers linking vanadium across the web's reference databases