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Valence   /vˈeɪləns/   Listen
noun
Valence  n.  (Chem.) The degree of combining power of an atom (or radical) as shown by the number of atoms of hydrogen (or of other monads, as chlorine, sodium, etc.) with which it will combine, or for which it can be substituted, or with which it can be compared; thus, an atom of hydrogen is a monad, and has a valence of one; the atoms of oxygen, nitrogen, and carbon are respectively dyads, triads, and tetrads, and have a valence respectively of two, three, and four. Note: The valence of certain elements varies in different compounds. Valence in degree may extend as high as seven or eight, as in the cases of iodine and osmium respectively. The doctrine of valence has been of fundamental importance in distinguishing the equivalence from the atomic weight, and is an essential factor in explaining the chemical structures of compounds.






Collaborative International Dictionary of English 0.48








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"Valence" Quotes from Famous Books



... Thorold's, in the "Blot on the 'Scutcheon," it is that of subservience respectively to conventional morality and family pride (Lord Tresham, it may be added, is the most hopelessly monomaniacal of all Browning's "monomaniacs"): in Valence's, in "Colombe's Birthday," to chivalric love: in Charles, in "King Victor and King Charles," to kingly and filial duty: in Anael's and Djabal's, in "The Return of the Druses," respectively to religion ...
— Life of Robert Browning • William Sharp

... overtake her if her charge escaped. But it was impossible! It could not be! And La Marmotte made another step forward, and as she looked she saw a white-robed figure kneeling at a prie-dieu, half concealed by the valence of the bed. ...
— Orrain - A Romance • S. Levett-Yeats

... friend, was rather distinguished-looking. He had given up his consulship in Valence, and sacrificed his diplomatic prospects to live near Zephirine (also known as Zizine) in Angouleme. He had taken the household in charge, he superintended the children's education, taught them foreign languages, and looked after the fortunes of M. and Mme. de Senonches ...
— Two Poets - Lost Illusions Part I • Honore de Balzac

... Fellows, the painter, makes a long summer; he bought an old farm-house, and built a studio; Miss Jennings, the flower-painter, has a little box there, too; Mr. Chapley, the publisher, of New York, has built; the Misses Clevinger, and Mrs. Valence, are all near us. There's one family from Chicago—quite nice—New England by birth, you know; and Mrs. Munger, of course; so that ...
— Annie Kilburn - A Novel • W. D. Howells

... 17. The French and Austrian armies drawn up in order of battle all day opposite to each other. 18. Bloody battle of Neerswinde, which lasts the whole day. The French wholly defeated. 19. The battle of Tirlemont; General Valence wounded, and the French routed. Dumourier suspected of treason at Paris. 23. Battle of Louvain between the French and Austrians. The Prussians approach Mayence. Dumourier demands a truce of six days to evacuate the ...
— Historical Epochs of the French Revolution • H. Goudemetz


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