Tungsten

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Tungsten Facts

    Atomic number: 74

    Atomic mass: 183.85 atomic mass units

    Common isotopes: 180, 182, 183, 184, 186

    Ground state electronic configuration: 1s²2s²2p⁶3s²3p⁶3d¹⁰4f¹⁴5s²5p⁶5d⁴6s²

    Common oxidation states: 2+, 3+, 4+, 5+, 6+

    Physical appearance: Silver lustrous metal, solid

    Physical properties:

        melting point: 3,140 degrees C (highest of all metals)

        boiling point: 5,530 degrees C

        crystal structure: body centered cubic

        density: (at 293 K) 19.3 g/cm³

    Electronegativity: 1.7 (Pauling)

    Source: in the earth. China produces 75% of the world's tungsten

    Price per gram: .006174 US dollars

    Uses: Used as light bulb filaments because of their high heat capacity. Tungsten will burn bright without corroding for a long time. Also used as wire.

Crystal diagram

Links

http://www.webelements.com/webelements/elements/text/W/key.html

http://www.tungsten.com/mtstung.html

Audio

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Las Islas Galapagos

  

                                                                                                Charles Darwin