Technical data for Vanadium

Overview Name Vanadium Symbol V Atomic Number 23 Atomic Weight 50.9415 Density 6.11 g/cc Melting Point 1910.°C Boiling Point 3407.°C Thermal properties Phase Solid Melting Point 1910.°C Boiling Point 3407.°C Absolute Melting Point 2183.K Absolute Boiling Point 3680.K Critical Pressure N/A Critical Temperature N/A Heat of Fusion 22.8KJ/mol Heat of Vaporization 453.KJ/mol Heat of Combustion N/A Specific Heat 489.J/(Kg K)[note] Adiabatic Index N/A Neel Point N/A Thermal Conductivity 31.W/(m K) Thermal Expansion 8.4×10-6K-1 Bulk physical properties Density 6.11 g/cc Density (Liquid) 5.5 g/cc Molar Volume 8.3374×10-6 Brinell Hardness 628.MPa Mohs Hardness 7.MPa Vickers Hardness 628.MPa Bulk Modulus 160.GPa Shear Modulus 47.GPa Young Modulus 128.GPa Poisson Ratio 0.37 Refractive Index N/A Speed of Sound 4560.m/s Thermal Conductivity 31.W/(m K) Thermal Expansion 8.4×10-6K-1 Reactivity Valence 5 Electronegativity 1.63 ElectronAffinity 50.6KJ/mol Ionization Energies 650.9, 1414., 2830., 4507., 6298.7, 12363., 14530., 16730., 19860., 22240., 24670., 29730., 32446., 86450., 94170., 1.023×105, 1.127×105, 1.216×105, 1.307×105, 1.434×105, 151440. KJ/mol Health and Safety Autoignition Point N/A Flashpoint N/A Heat of Combustion N/A DOT Hazard Class 4.1 DOT Numbers 3089 EU Number EU231-171-1 NFPA Fire Rating 1 NFPA Hazards N/A NFPA Health Rating 2 NFPA Reactivity Rating 0 RTECS Classes Tumorigen RTECS Number RTECSYW1355000 NFPA Label

Classifications Alternate Names None Names of Allotropes None Block d Group 5 Period 4 Electron Configuration [Ar]3d34s2 Color Silver Discovery 1801 in Mexico and Sweden Gas phase N/A CAS Number CAS7440-62-2 CID Number CID23990 Gmelin Number Gmelin49047 NSC Number N/A RTECS Number RTECSYW1355000 Electrical properties Electrical Type Conductor Electrical Conductivity 5.×106S/m Resistivity 2.×10-7m Ω Superconducting Point 5.4 Magnetic properties Magnetic Type N/A Curie Point N/A Mass Magnetic Susceptibility 6.28×10-8 Molar Magnetic Susceptibility 3.199×10-9 Volume Magnetic Susceptibility 0.0003837 Abundances % in Universe 0.0001% % in Sun 0.00004% % in Meteorites 0.0061% % in Earth's Crust 0.019% % in Oceans 1.5×10-7% % in Humans 3.×10-6% Atomic dimensions and structure Atomic Radius 171.pm Covalent Radius 125.pm Van der Waals Radius N/A Crystal Structure Body Centered Cubic Lattice Angles π/2, π/2, π/2 Lattice Constants 303., 303., 303. pm Space Group Name Im_ 3m Space Group Number 229 Nuclear Properties Half-Life Stable Lifetime Stable Decay Mode N/A Quantum Numbers 4F3/2 Neutron Cross Section 5.06 Neutron Mass Absorption 0.0033 Known Isotopes 40V, 41V, 42V, 43V, 44V, 45V, 46V, 47V, 48V, 49V, 50V, 51V, 52V, 53V, 54V, 55V, 56V, 57V, 58V, 59V, 60V, 61V, 62V, 63V, 64V, 65V Stable Isotopes 51V Isotopic Abundances 50V 0.25% 51V 99.75%