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Revision as of 01:30, 7 July 2002
An chemical element, in the periodic table Argon has the symbol Ar and atom number 18.
One of the noble gases in period 8, diatomic Argon makes up about 1% of the Earth's atmosphere. It is used in lighting as it will not react with the filament in a lightbulb even under high temperatures, and other cases where Nitrogen is an unsuitable (semi-)inert gas.
Used in technical SCUBA diving to inflate the drysuit, due to its nonreactive, heat isolating effect.
External Link:
Los Alamos National Laboratory's Chemistry Division: Periodic Table - Argon
See: Periodic Table