Difference between revisions of "Argon"

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[[Category:Elements]]

Revision as of 14:34, 6 April 2007

Argon
Properties
Atomic symbol Ar
Atomic number 18
Classification Non-metal
Atomic mass 39.9 amu
Other Information
Date of discovery 1894
Name of discoverer Sir William Ramsey
Name origin From the Greek argon.
Uses Lighting
Obtained from Air