General

Tungsten (W) - Properties


Atomic mass, symbol and atomic number

tungsten is a naturally occurring element with the element symbol W and the atomic number 74. In the periodic table it stands with an atomic mass of 183.84 u in the 6th subgroup. The chemical element discovered by Fausto and Juan Elhuyar in 1783 is not radioactive and is in a solid state at room temperature.

Profile: Wolfram (English Tungsten)

General
Chemical element:tungsten
Symbol:W
Atomic number:74
Group:Chrome group
Period:6
Block:d-block
Series:Transition metals
Appearance:gray to black
explorers:Fausto Elhuyar and Juan José Elhuyar
Year of discovery:1783
Atomic properties
Atomic mass:183.84 u
Atomic radius:135 pm
Covalent radius:162 pm
Van der Waals radius:unknown
Electron configuration:Xe 4f145d46s2
ionization:770 kJ / mol
Physical Properties
Physical state:firmly
Density:???
Crystal structure:cubic
Magnetism:paramagnetic
molar volume:9,47 · 10-6 m3/ mol
Mohs hardness:7,5
Melting point:3422 ° C
Boiling point:5930 ° C
Heat of fusion:35.4 kJ / mol
Heat of vaporization:774 kJ / mol
Thermal conductivity:170 W
Chemical properties
electronegativity:2,36

Did you know that ...

  • Tungsten is known in the English-speaking world under the name Tungsten?
  • the glow wire in tungsten light bulbs consists?
  • Tungsten with almost 3500 ° C has the highest melting point of all metals?