Argon

= ARGON  By:  Crystal =


 * Atomic Number: ** 18


 * Protons: 18 **


 * Electrons: ** 18


 * Neutrons: ** 22


 * Average Atomic Mass: ** 39.948


 * Isotopes:  36Ar, 38Ar, 40Ar **


 * Discovery: ** Argon was discovered in 1894 by Henry Cavendish, he predicted the existance of argon 200 years earlier. Henry removed oxygen and nitrogen from the air, and found a very small amount of gas left. Henry was unable to identify what it was. When Ramsay repeated Cavendish's experiments in the 1890s, he, too, found a tiny amount of gas in the air. He found a series of lines that did not match any other element. He was convinced that he had found a new element. Meanwhile, Rayleigh was doing work that was similar at almost the same time. He made his discovery almost at the same time Ramsay did.


 * Name:  Both Rayleigh and Ramsay decided on the name together. The name that they choose was ARGON. **<span style="color: #800080; font-family: Arial,Helvetica,sans-serif; line-height: 26px;">The name ARGON comes from the Greek word argos, which means "the lazy one." The name is based on Argon's inability to react with anything.


 * Uses: ** Used in electric light bulbs, glow sticks, incandescent light bulbs, provides the atmosphere for growing crystals, photo tubes, and a motionless gas shield for arc welding and cutting.

<span style="color: #0000ff; font-family: Arial,Helvetica,sans-serif;"> <span style="font-family: arial,helvetica,sans-serif;">** Video: **
 * Interesting Facts ** : <span style="color: #800080; font-family: Arial,Helvetica,sans-serif;">Argon is colorless and odorless, it is a Noble Gas, gaseous element constituting approximately one percent of Earth's atmosphere, and is located in group 18. Discovered in 1804 by Sir William Ramsay. Argon comes from the Greek word <span style="color: #0000ff; font-family: Arial,Helvetica,sans-serif;">// Argon // <span style="color: #800080; font-family: Arial,Helvetica,sans-serif;"> which means inactive. Argon is obtained from air.

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 * Sources **
 * <span style="color: #00ff00; font-family: Arial,Helvetica,sans-serif;">Photo: <span style="color: #ff0000; font-family: Georgia,serif;">http://z.about.com/d/chemistry/1/0/7/Q/argon1.jpg
 * <span style="color: #00ff00; font-family: Arial,Helvetica,sans-serif;">Video: http://www.youtube.com/watch?v=nrHVOFG2V-c
 * http://www.chemicalelements.com/elements/ar.html
 * http://www.chemistryexplained.com/A-Ar/Argon.html
 * http://education.jlab.org/itselemental/iso018.html
 * http://www.webelements.com/argon/
 * http://www.chemicool.com/elements/argon.html