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Argon is a chemical element; it has symbol Ar and atomic number 18. It is in group 18 of the periodic table and is a noble gas. [10] Argon is the third most abundant gas in Earth's atmosphere, at 0.934% (9340 ppmv).
By isolating nitrogen in different ways he discovered a small but significant difference, which indicated a heavier inert gas present in the air besides nitrogen. William Ramsay joined this research topic, and in August they discovered argon. [8] [9]
Sir William Ramsay KCB FRS FRSE (/ ˈ r æ m z i /; 2 October 1852 – 23 July 1916) was a Scottish chemist who discovered the noble gases and received the Nobel Prize in Chemistry in 1904 "in recognition of his services in the discovery of the inert gaseous elements in air" along with his collaborator, John William Strutt, 3rd Baron Rayleigh, who received the Nobel Prize in Physics that same ...
1894: Argon discovered by English physicist John Strutt, 3rd Baron Rayleigh (1842–1919) and Scot William Ramsay. 1898: Morris Travers was an English chemist who with scot Sir William Ramsay discovered xenon , neon and krypton .
Aneesur Rahman (24 August 1927 – 6 June 1987 [1]) was an Indian-born American physicist who pioneered the application of computational methods to physical systems.His 1964 paper [2] on liquid argon studied a system of 864 argon atoms on a CDC 3600 computer, using a Lennard-Jones potential.
In 1962, Neil Bartlett discovered the first chemical compound of a noble gas, xenon hexafluoroplatinate. [17] Compounds of other noble gases were discovered soon after: in 1962 for radon, radon difluoride (RnF 2), [18] which was identified by radiotracer techniques and in 1963 for krypton, krypton difluoride (KrF 2). [19]
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This is an accepted version of this page This is the latest accepted revision, reviewed on 1 March 2025. Development of the table of chemical elements The American chemist Glenn T. Seaborg —after whom the element seaborgium is named—standing in front of a periodic table, May 19, 1950 Part of a series on the Periodic table Periodic table forms 18-column 32-column Alternative and extended ...