tetravalency
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tetravalency — tet·ra·valency … English syllables
tetravalency — noun see tetravalence … Useful english dictionary
Linus Pauling — Infobox Scientist name = Linus Pauling caption = Linus Pauling in 1954 birth date = birth date|1901|2|28|df=y birth place = Portland, Oregon, USA residence = United States nationality = United States death date = death date and… … Wikipedia
dye — dyable, dyeable, adj. dyer, n. /duy/, n., v., dyed, dyeing. n. 1. a coloring material or matter. 2. a liquid containing coloring matter, for imparting a particular hue to cloth, paper, etc. 3. color or hue, esp. as produced by dyeing. 4. of the… … Universalium
Lanthanum — (pronEng|ˈlænθənəm) is a chemical element with the symbol La and atomic number 57. Characteristics Lanthanum is a silvery white metallic element that belongs to group 3 of the periodic table and is a lanthanoid. Found in some rare earth minerals … Wikipedia
isomerism — /uy som euh riz euhm/, n. 1. Chem. the relation of two or more compounds, radicals, or ions that are composed of the same kinds and numbers of atoms but differ from each other in structural arrangement (structural isomerism), as CH3OCH3 and… … Universalium
tetravalent — tetravalence, tetravalency, n. /te treuh vay leuhnt, te trav euh /, adj. Chem. 1. having a valence of four, as Pt+4. 2. quadrivalent. [1865 70; TETRA + VALENT] * * * … Universalium
Couper, Archibald Scott — ▪ Scottish chemist born March 31, 1831, Kirkintilloch, Dunbartonshire, Scot. died March 11, 1892, Kirkintilloch Scottish chemist who, independently of August Kekule, proposed the tetravalency of carbon and the ability of carbon atoms to… … Universalium
LONDON, FRITZ — (1900–1954), German theoretical physicist. London was born in Breslau, and was at the University of Berlin until driven out by the Nazis. In 1927, together with Walter Heitler of Zurich, he wrote a basic paper for physicists and chemists, on… … Encyclopedia of Judaism