valence number


valence number
noun

Useful english dictionary. 2012.

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  • valence number — oksidacijos laipsnis statusas T sritis chemija apibrėžtis Sąlyginis atomo krūvis junginyje, kurį atomas įgytų netekdamas (prisijungdamas) valentinių elektronų. atitikmenys: angl. oxidation degree; oxidation number; valence number rus. степень… …   Chemijos terminų aiškinamasis žodynas

  • Valence (chemistry) — For other uses, see Valence (disambiguation). In chemistry, valence, also known as valency or valence number, is a measure of the number of bonds formed by an atom of a given element. Valence can be defined as the number of valence bonds[1] a… …   Wikipedia

  • Valence, Drôme — Valence Champ de Mars and Kiosque Peynet …   Wikipedia

  • Valence (psychology) — Valence , as used in psychology, especially in discussing emotions, means the intrinsic attractiveness (positive valence) or aversiveness (negative valence) of an event, object, or situation. [Nico H. Frijda, The Emotions. Cambridge(UK):… …   Wikipedia

  • Valence — Va lence, n. [From L. valens, entis, p. pr. of valere to have power, to be strong. See {Valiant}.] (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 …   The Collaborative International Dictionary of English

  • valence — n. pl. valencies [vā′ləns] n. [LL valentia, worth, capacity < L, vigor < valens, prp. of valere, to be strong: see VALUE] Chem. 1. the capacity of an element or radical to combine with another to form molecules, as measured by the number of …   English World dictionary

  • Valence electron — In chemistry, valence electrons are the electrons contained in the outermost, or valence , electron shell of an atom. Valence electrons are important in determining how an element reacts chemically with other elements: The fewer valence electrons …   Wikipedia

  • valence — /vay leuhns/, n. 1. Chem. a. the quality that determines the number of atoms or groups with which any single atom or group will unite chemically. b. the relative combining capacity of an atom or group compared with that of the standard hydrogen… …   Universalium

  • Valence — /vann lahonns /, n. a city in and the capital of Drôme, in SE France. 70,307. * * * Number of bonds (see bonding) an atom can form. Hydrogen (H) always has valence 1, so other elements valences equal the number of hydrogen atoms they combine with …   Universalium

  • Valence band — In solids, the valence band is the highest range of electron energies where electrons are normally present at absolute zero. In semiconductors and insulators, there is a band gap above the valence band, followed by a conduction band above that.… …   Wikipedia