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Drôme
(Encyclopedia)Drôme drōm [key], department, SE France. Valence is the capital. ...cupric
(Encyclopedia)cupric kyo͞oˈprĭk [key], copper in the +2 valence state. ...cuprous
(Encyclopedia)cuprous kyo͞oˈprəs [key], copper in the +1 valence state. ...ferric
(Encyclopedia)ferric fĕrˈĭk [key], iron in the +3 valence state. ...ferrous
(Encyclopedia)ferrous fĕrˈəs [key], iron in the +2 valence state. ...Lewis, Gilbert Newton
(Encyclopedia)Lewis, Gilbert Newton, 1875–1946, American chemist, b. Weymouth, Mass., grad. Harvard (B.A., 1896; Ph.D., 1899). He taught at Harvard and at the Massachusetts Institute of Technology (1907–12) and...molecular orbital theory
(Encyclopedia)molecular orbital theory, detailed explanation of how electrons are distributed in stable molecules. In the simpler valence theory of the chemical bond, each atom in a molecule is assumed to retain it...stannic
(Encyclopedia)stannic: a chemical compound containing tin in the +4 valence state. ...stannous
(Encyclopedia)stannous: a chemical compound containing tin in the +2 valence state. ...semiconductor
(Encyclopedia)CE5 N-type and P-type crystals: In a pure silicon crystal each silicon atom (Si) is surrounded by four valence electrons. In the N-doped semiconductor, illustrated in the left-hand figure, some sil...Browse by Subject
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