1 / 8
Télécharger la présentation

Exploring Argon: The Inert Noble Gas Discovered by Ramsay and Rayleigh

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. By Steven Chrappa

  2. Discovery of Argon • Discovered by Sir William Ramsay, a Scottish chemist, and Lord Rayleigh, an English chemist in 1894 • Was the first inverted gas to be discovered on earth • One of the noble elements • Comes from the Greek word for inactive, argos meaning inactive

  3. Characteristics of Argon • Melting Point:83.80 K (-189.35°C or -308.83°F) • Boiling Point:87.30 K (-185.85°C or -302.53°F) • Density:0.0017837 grams per cubic centimeter • Phase at Room Temperature: Gas • Atomic Number:18 • Atomic Weight:39.948 • Element Classification: inverted gas • Symbol: Ar

  4. Earth’s atmosphere contains .94% argon • Argon is found by fractionating liquid air Sourceof Argon

  5. Uses of Argon • Argon is used in electric lights and fluorescent tubes, photo tubes, glow tubes, and in lasers. • Argon is used as an inert gas for welding and cutting, blanketing reactive elements, • Protective (nonreactive) atmosphere for growing crystals of silicon and germanium.

  6. Bohr-Rutherford Diagram Electron Dot Diagram Ar Electron Configuration 1s² 2s² 2p6 3s2 3p6

  7. The End

  8. Bibliography Works Cited "Argon." Periodic. 15 Dec. 2003. US Department of Energy. 28 Nov. 2008 <http:/periodic.lanl.gov/ elements/18.html>. "Argon: the essentials." Web Elements. 29 Dec. 2007. 28 Nov. 2008 <http://www.webelements.com/ argon/>. Gagnon, Steve. "It's Elemental Argon!" Jeffereson Lab. 29 Sept. 2008. 29 Nov. 2008 <http://education.jlab.org/itselemental/ele018.html>.

More Related