Tungsten

Information

HISTORY

  • Brothers Fausto and Juan Jose de Elhuyar discovered tungsten, in Spain, by reducing acidified wolframite with charcoal

PROPERTIES

1. Hard but brittle metal

2. Highest boiling point of any metals at 5,555 Degrees Celsius

3. Very high tensile strength at temperatures over 1650 Degrees Celsius

USES


  • Used in many high temperature applications, such as arc-welding electrodes and heating elements in high-temperature furnaces
  • Important for metal working, mining, and petroleum industries
  • Lighting element of light bulbs

COMPOUNDS


1. Tungsten (III) Oxide - W2O3

2. Tungsten (VI) Phosphate - W(PO4)2

3. Tungsten (VI) Sulfate - W(SO4)3

PERIODIC TABLE INFORMATION

Atomic # - 74 Mass - 183.85 Protons - 74 Neutrons - 110 Electrons - 74

Isotopes

Most abundant:

W- 182 W- 183 W- 186

Big image

Visual Model

Lewis Dot Structure

2 Valence Electrons

PROPERTIES OF TRANSITION METALS

  1. Good Conductors of heat and electricity
  2. Easily hammered and bent in to shape
  3. Less reactive than alkali metals like sodium
  4. High melting and boiling points
  5. Very high densities

Acrostic Poem

T homas Edison

U seful

N on-Toxic

G rey

S olid

T wo Valence Electrons

E lhuyar

N ozzles of rocket engines

Tungsten Carbide

Formula

W + C = WC

Synthesis Reaction

Mol Ratio- 1 W : 1 C : 1 WC

Sources

Harris, RK. "Tungsten: Isotope Data." Web Elements. N.p., n.d. Web. 03 May 2016. <https://www.webelements.com/tungsten/isotopes.html>.


"The Transition Metals." BBC News. BBC Worldwide, n.d. Web. <http://www.bbc.co.uk/schools/gcsebitesize/science/edexcel_pre_2011/patterns/transitionmetalsrev1.shtml>.


Google Images


"Tungsten - Element Information, Properties and Uses | Periodic Table."Tungsten - Element Information, Properties and Uses | Periodic Table. Royal Society of Chemistry, n.d. Web. 05 May 2016.

<http://www.rsc.org/periodic-table/element/74/tungsten>


"Periodic Table of Elements." : Tungsten. Environmental, n.d. Web. 05 May 2016. <http://environmentalchemistry.com/yogi/periodic/W.html#Physical>.


"TUNGSTEN." Tungsten, Chemical Element. Chemistry Explained, n.d. Web. 05 May 2016. <http://www.chemistryexplained.com/elements/T-Z/Tungsten.html>.

Tungsten Dichloride

  • WCL2
  • W- 72.17%
  • CL- 27.83%