group valence

См. также в других словарях:

• 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

• Group 8 element — Group 8 redirects here. For the Swedish organization, see Group 8 (Sweden). A Group 8 element is one in the series of elements in group 8 (IUPAC style) in the periodic table, which consists of the transition metals iron (Fe), ruthenium (Ru),… …   Wikipedia

• 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 Technology — Infobox Company company name = Valence Technology Inc. company company type = Public foundation = 1989 location = Austin, Texas, US key people = Robert Kanode, CEO President industry = Batteries products = Large format Lithium Phosphate… …   Wikipedia

• Valence bond codes — VB computer programs for modern valence bond calculations: * CRUNCH is by Gordon A. Gallup and his group. [ [http://phy ggallup.unl.edu/crunch CRUNCH] ] * GAMESS (UK) includes calculation of VB wave functions by the TURTLE code, due to J.H. van… …   Wikipedia

• Valence Leclerc — Dans une galaxie près de chez vous Pour les articles homonymes, voir Dans une galaxie près de chez vous (homonymie). Dans une galaxie près de chez vous Titre original Dans une galaxie près de chez vous Genre Série de science fiction Créateur(s)… …   Wikipédia en Français

• Group 2 organometallic chemistry — The group 2 elements are known to form organometallic compounds. .[1][2] Of these, organomagnesium compounds, usually in the form of Grignard reagents are widely used in organic chemistry, while the other organometallic compounds of this group… …   Wikipedia

• Group 5 element — A Group 5 element is one in the series of elements in group 5 (IUPAC style) in the periodic table, which consists of vanadium (V), niobium (Nb), tantalum (Ta), and dubnium (Db).All of these elements are classed in Group 5 because their valence… …   Wikipedia

• valence — va•lence [[t]ˈveɪ ləns[/t]] also valency 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… …   From formal English to slang

• valence — noun /ˈveɪləns/ a) The combining capacity of an atom, radical or functional group determined by the number of electrons that it will lose, gain, or share when it combines with other atoms etc b) The number of …   Wiktionary