Periodic Table of Elements

74

Tungsten

183.84

In 1781, Carl Wilhelm Scheele discovered that a new acid, tungstic acid, could be made from scheelite. Tungsten was isolated by on Juan Jos D'Elhuyard and Don Fausto D'Elhuyard, Spanish chemists and brothers, in 1783, and they are credited with the discovery of the element.

Name: Tungsten
Symbol: W
Atomic number: 74
Atomic weight: 183.84
State: solid
Group, period, block: 6, 6, d
Color: grayish white, lustrous
Classification: transition metal
Electron configuration: 4f14 5d4 6s2[1]
2,8,18,32,12,2

Physical properties

Density: 19.25 g/cm-3
Melting point: 3695 K, 3422 C, 6192 F
Boiling point: 5828 K, 5555 C, 10031 F

Atomic properties

Oxidation states: 6, 5, 4, 3, 2, 1, 0, -1, -2
Electronegativity: 2.36 (Pauling scale)
Ionization energies: 1st: 578.8 kJmol-1
Covalent radius: 1627 pm
Van der Waals radius: no data
  • W
  • Electron Configuration

Isotopes

There are five naturally occurring isotopes of tungsten exist, 180W, 182W, 183W, 184W, and 186W.