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Argon   Listen
noun
Argon  n.  (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° C. and to a solid melting at -189.6° 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° C. and 760 mm., 1.7828 g.





Collaborative International Dictionary of English 0.48


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"Argon" Quotes from Famous Books



... possibilities of the future. Within but a few years we have made such discoveries as two centuries ago would have sent the discoverer's to the flames. The liquefaction of oxygen; the existence of radium, of helium, of polonium, of argon; the different powers of Roentgen and Cathode and Bequerel rays. And as we may finally prove that there are different kinds and qualities of light, so we may find that combustion may have its own powers of differentiation; that there are qualities in some flames ...
— The Jewel of Seven Stars • Bram Stoker
... Tolma alogistos andria philetairos enomisthae ... to de sophron tou anandrou proschaema, kai to pros apan xyneton epi pan argon to de emplaektos oxuandros moira prosetethae ... kai ho men chalepainon pistos aei, ho de antilegon auto upoptos.]—Thuc. iii. 82. "Reckless daring was held to be loyal courage; moderation was the disguise of unmanly weakness; to know everything was to do nothing; frantic energy was ...
— The Oxford Movement - Twelve Years, 1833-1845 • R.W. Church
... "within the hindmost bosom of the Mantinice." In reference to the position, Leake ("Morea," iii. 75) says: "The northern bay (of the Mantinic plain between Mantinea and the Argon) corresponds better by its proximity to Mantinea; by Mount Alesium it was equally hidden from the city, while its small dimensions, and the nearness of the incumbent mountains, rendered it a more hazardous position to an army under the circumstances of that of Agesilaus" (than had ...
— Hellenica • Xenophon


Words linked to "Argon" :   ar, element, potassium-argon dating, inert gas, noble gas, argonon, air, chemical element, atomic number 18


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