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xenon |
3 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Xenon \Xen"on\, n. [Gr. ?, neut. of ? strange.] (Chem.) A very heavy, inert gaseous element occurring in the atmosphere in the proportion of one volume is about 20 millions. It was discovered by Ramsay and Travers in 1898. It can be condensed to a liquid boiling at -109[deg] C., and to a solid which volatilizes without melting. Symbol Xe or X; atomic weight 130.2. From WordNet r 1.6 [wn]: xenon n : a colorless odorless inert gaseous element occurring in the earth's atmosphere in trace amounts [syn: {Xe}, {atomic number 54}] From Elements database 20001107 [elements]: xenon Symbol: Xe Atomic number: 54 Atomic weight: 131.30 Colourless, odourless gas belonging to group 18 on the periodic table (the noble gases.) Nine natural isotopes and seven radioactive isotopes are known Xenon was part of the first noble-gas compound synthesized. Several others involving Xenon have been found since then. Xenon was discovered by Ramsey and Travers in 1898.
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