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flame test

(Encyclopedia)flame test, test used in the identification of certain metals. It is based on the observation that light emitted by any element gives a unique spectrum when passed through a spectroscope. When a salt ...

Sommerfeld, Arnold Johannes Wilhelm

(Encyclopedia)Sommerfeld, Arnold Johannes Wilhelm ärˈnōlt yōhänˈəs vĭlˈhĕlm zômˈərfĕlt [key], 1868–1951, German physicist and teacher. He received a Ph.D. at Königsburg Univ. in 1891 and was a prof...

nonmetal

(Encyclopedia)nonmetal, chemical element possessing certain properties by which it is distinguished from a metal. In general, this distinction is drawn on the basis that a nonmetal tends to accept electrons and for...

Carson

(Encyclopedia)Carson, city (2020 pop. 95,558), Los Angeles co., S Calif., an industrial and residential suburb of Los Angeles; inc. 1968. Oil refining is the major in...

Johnston

(Encyclopedia)Johnston, town (1990 pop. 26,542), Providence co., N central R.I., a suburb of Providence; inc. 1759. Among its manufactures are jewelry, textiles, and fabricated metals. Johnston is the home of sever...

Narashino

(Encyclopedia)Narashino närəshēˈnō [key], city (1990 pop. 151,471), Chiba prefecture, E central Honshu, Japan, on Tokyo Bay. It is a newly developed suburb of Tokyo and has a large metals industry. ...

Bobigny

(Encyclopedia)Bobigny bôbēnyēˈ [key], city, capital of Seine–Saint Denis dept., N central France, an ...

Kishiwada

(Encyclopedia)Kishiwada kēshēwäˈdä [key], city (1990 pop. 188,563), Osaka prefecture, SW Honshu, Japan, on Osaka Bay. It is an industrial and residential suburb of Osaka, producing lumber, textiles, and metals...

Piekary Śląskie

(Encyclopedia)Piekary Śląskie pyĕkäˈrĭ shlôNˈskyĕ [key], town (1992 est. pop. 68,400), Śląskie prov., S Poland, in the Katowice mining and industrial region. Its manufactures include mining equipment and...

ruthenium

(Encyclopedia)ruthenium ro͞othēˈnēəm [key], metallic chemical element; symbol Ru; at. no. 44; at. wt. 101.07; m.p. about 2,310℃; b.p. about 3,900℃; sp. gr. 12.41 at 20℃; valence commonly +2, +3, +4, +6, ...