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xenon    音标拼音: [z'inɑn]
n. 氙,稀有气体元素,符号Xe

氙,稀有气体元素,符号Xe

xenon
n 1: a colorless odorless inert gaseous element occurring in the
earth's atmosphere in trace amounts [synonym: {xenon}, {Xe},
{atomic number 54}]

Noble \No"ble\, a. [Compar. {Nobler}; superl. {Noblest}.] [F.
noble, fr. L. nobilis that can be or is known, well known,
famous, highborn, noble, fr. noscere to know. See {know}.]
1. Possessing eminence, elevation, dignity, etc.; above
whatever is low, mean, degrading, or dishonorable;
magnanimous; as, a noble nature or action; a noble heart.
[1913 Webster]

Statues, with winding ivy crowned, belong
To nobler poets for a nobler song. --Dryden.
[1913 Webster]

2. Grand; stately; magnificent; splendid; as, a noble
edifice.
[1913 Webster]

3. Of exalted rank; of or pertaining to the nobility;
distinguished from the masses by birth, station, or title;
highborn; as, noble blood; a noble personage.
[1913 Webster]

Note: Noble is used in the formation of self-explaining
compounds; as, noble-born, noble-hearted, noble-minded.
[1913 Webster]

{Noble gas} (Chem.), a gaseous element belonging to group
VIII of the periodic table of elements, not combining with
other elements under normal reaction conditions;
specifically, {helium}, {neon}, {argon}, {krypton},
{xenon}, or {radon}; also called {inert gas}.

{Noble metals} (Chem.), silver, gold, and platinum; -- so
called from their resistance to oxidation by air and to
dissolution by acids. Copper, mercury, aluminium,
palladium, rhodium, iridium, and osmium are sometimes
included.
[1913 Webster]

Syn: Honorable; worthy; dignified; elevated; exalted;
superior; sublime; great; eminent; illustrious;
renowned; stately; splendid; magnificent; grand;
magnanimous; generous; liberal; free.
[1913 Webster]


Xenon \Xen"on\ (z[e^]n"[o^]n; z[=e]"n[o^]n), n. [Gr. xe`non,
neut. of xe`nos strange.] (Chem.)
A very heavy, inert gaseous element of the noble gas group,
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 -107[deg]
C., and to a solid which melts at -111.9[deg] C. Symbol Xe
(formerly also X); atomic number 54; atomic weight 131.3.
[Webster 1913 Suppl. PJC]


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  • Xenon - Wikipedia
    Xenon is a chemical element; it has symbol Xe and atomic number 54 It is a dense, colorless, odorless noble gas found in Earth's atmosphere in trace amounts [17] Although generally unreactive, it can undergo a few chemical reactions such as the formation of xenon hexafluoroplatinate, the first noble gas compound to be synthesized [18][19][20]
  • Xenon | Definition, Properties, Atomic Mass, Compounds . . .
    xenon (Xe), chemical element, a heavy and extremely rare gas of Group 18 (noble gases) of the periodic table It was the first noble gas found to form true chemical compounds More than 4 5 times heavier than air, xenon is colorless, odorless, and tasteless
  • Xenon Facts and Uses - Atomic Number 54 Element Symbol Xe
    Xenon is a rare gas in the Earth’s atmosphere, present at a concentration of about 1 part per 11 5 million (0 087 parts per million) Although it’s rare, the best source of the element is extraction from liquid air Xenon also occurs in the Martian atmosphere at about the same concentration
  • Xenon | History, Uses, Facts, Physical Chemical Characteristics
    Xenon is used in search of hypothetical weakly interacting massive particles Several satellites use xenon ion propulsion system to keep them in orbit and in some other space craft Xenon is widely used in the preparation of 5-fluorouracil, a drug used to treat certain cancer
  • Xenon Definition, Facts, Symbol, Discovery, Properties, Uses
    Xenon (pronunciation: ZEE-non) is a colorless, odorless, highly unreactive element classified as a noble gas and represented by the chemical symbol Xe [1, 2] It is denser and heavier than most of the other noble gases and can be synthesized into xenon hexafluoroplatinate, the first noble gas compound [3]
  • Xenon - Element information, properties and uses | Periodic Table
    Element Xenon (Xe), Group 18, Atomic Number 54, p-block, Mass 131 293 Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images
  • Xenon | Xe (Element) - PubChem
    Chemical element, Xenon, information from authoritative sources Look up properties, history, uses, and more
  • Xenon - New World Encyclopedia
    Xenon (chemical symbol Xe, atomic number 54) is a colorless, odorless, heavy noble gas that occurs in the Earth 's atmosphere in trace amounts It was the first noble gas from which a compound was synthesized successfully, and many xenon compounds have been made by now
  • Xenon - Living Periodic Table
    Xenon may be one of the rarest gases on Earth, but it has some incredible uses, from bright lights to space travel Even though you can’t see it or smell it, xenon is a powerful element with some surprising jobs in today’s world
  • Xenon - StatPearls - NCBI Bookshelf
    Xenon is an element with the symbol Xe, has an atomic number 54, and belongs to group 18 of the periodic table Xe is a monoatomic, inert gas, first discovered in 1898 by British chemists William Ramsay (1852-1916) and Morris Travers (1872-1961) in the residue left after partial evaporation of liquid air (with krypton as an impurity) [1]





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