Argon Definition

ärgŏn
noun
A colorless, odorless, inert gaseous element constituting approximately one percent of the earth's atmosphere, from which it is commercially obtained by fractionation for use in electric light bulbs, fluorescent tubes, and radio vacuum tubes and as an inert gas shield in arc welding. Atomic number 18; atomic weight 39.948; melting point −189.36°C; boiling point −185.85°C.
American Heritage
A colorless, odorless chemical element, one of the noble gases, constituting nearly 1% of the atmosphere: it is used in incandescent lightbulbs, electron tubes, welding, etc.: symbol, Ar; at. no. 18
Webster's New World
A chemical element (symbol Ar) with an atomic number of 18.
Wiktionary

(physics) A rare stable isotope of argon, 3618Ar, having eighteen protons and eighteen neutrons; it amounts to about 0.3% of the element in nature.

Wiktionary

(physics) A rare stable isotope of argon, 3818Ar, having eighteen protons and twenty neutrons; it amounts to about 0.06% of the element in nature.

Wiktionary
Synonyms:
  • atomic number 18
  • ar

Origin of Argon

  • From Greek ārgon neuter of ārgos idle, inert a- without a–1 ergon work werg- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Ancient Greek ἀργόν (argon), neuter of ἀργός (argos, “idle, lazy”), because of its inertness.

    From Wiktionary

Argon Sentence Examples

  • The weight of a mixture of argon and nitrogen prepared from the dissolved gases showed an excess of 24 mg.

  • Of these, argon and its allies were the last to be definitely isolated.

  • In the absence of liquid air the helium must be purified by the methods employed for argon (q.v.).

  • One remarkable discovery, however, of general interest, was the outcome of a long series of delicate weighings and minute experimental care in the determination of the relative density of nitrogen gas - undertaken in order to determine the atomic weight of nitrogen - namely, the discovery of argon, the first of a series of new substances, chemically inert, which occur, some only in excessively minute quantities, as constituents of the 1 The barony was created at George IV.'s coronation in 1821 for the wife of Joseph Holden Strutt, M.P. for Maldon (1790-1826) and Okehampton (1826-1830), who had done great service during the French War as colonel of the Essex militia.

  • Although, as was natural, Cavendish was satisfied with his result, and does not decide whether the small residue was genuine, it is probable that his residue was really of a different kind from the main bulk of the "phlogisticated air," and contained the gas afterwards named argon.

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Words Starting With

AARARG

Words Ending With

NONGON

Unscrambles

argon

Words Starting With A and Ending With N

Starts With A & Ends With NStarts With AR & Ends With NStarts With A & Ends With ON

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5 Letter Words5 Letter Words Starting With A5 Letter Words Ending With N