For Argon we have terms and definitions in 4 topics. The topics are Atmospheric Chemistry, Explosives, Lighting and Windows.

Argon (Atmospheric Chemistry)

An element that is a member of the 8A group (Noble Gases) of the periodic table. Argon is represented by the atomic symbol Ar, has an atomic number of 18, and an atomic weight of 39.948. It is colorless, odorless, and a very inert gas. It comprises about 1% of the Earth's atmosphere. [Chemical & Engineering News; v73n36; 8; 1995.] [Chemistry The Central Science; Brown, Theodore; Lemay, H. Eugene; Bursten, Bruce; p. 846; 1994; Prentice Hall; Englewood Cliffs, New Jersey.]

Argon (Explosives)

(Ar), gaseous element, discovered in 1894 by Sir William Ramsay and Lord Rayleigh. An odorless, tasteless, and colorless inert gas, it makes up 0.93% of the atmosphere by volume. Argon is used in light bulbs and neon signs, in refining reactive elements, and for protection in arc welding.

Argon (Lighting)

Inert gas used in incandescent and fluorescent lamps. In incandescents, argon helps retard the evaporation of the tungsten filament.

Argon (Windows)

An odorless, colorless, tasteless, nontoxic gas that is six times denser than air. Replacing the air between two panes of glass with argon gas reduces temperature transfer, making the surface of the glass inside the house closer to the inside temperature.

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