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more about argon
argon |
4 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Argon \Ar"gon\, n. [NL., fr Gr ?, neut. of ? inactive; ? priv. + ? work.] (Chem.) A colorless, odorless gas occurring in the air (of which it constitutes 0.93 per cent by volume), in volcanic gases, etc.; -- so named on account of its inertness by Rayleigh and Ramsay, who prepared and examined it in 1894-95. Symbol, A; at wt., 39.9. Argon is condensible to a colorless liquid boiling at -186.1[deg] C. and to a solid melting at -189.6[deg] C. It has a characteristic spectrum. No compounds of it are known but there is physical evidence that its molecule is monatomic. Weight of one liter at 0[deg] C. and 760 mm., 1.7828 g. From Webster's Revised Unabridged Dictionary (1913) [web1913]: Argon \Ar"gon\, n. [Gr. ? inactive.] (Chem.) A substance regarded as an element, contained in the atmosphere and remarkable for its chemical inertness. --Rayleigh and Ramsay. From WordNet r 1.6 [wn]: argon n : a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere [syn: {Ar}, {atomic number 18}] From Elements database 20001107 [elements]: argon Symbol: Ar Atomic number: 18 Atomic weight: 39.948 Monatomic noble gas. Makes up 0.93% of the air. Colourless, odorless. Is inert and has no true compounds. Lord Rayleigh and Sir william Ramsey identified argon in 1894.
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