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valence, in chemistry
(Encyclopedia)valence, combining capacity of an atom expressed as the number of single bonds the atom can form or the number of electrons an element gives up or accepts when reacting to form a compound. Atoms are c...chemistry
(Encyclopedia)chemistry, branch of science concerned with the properties, composition, and structure of substances and the changes they undergo when they combine or react under specified conditions. Organic chemi...Æthelmar of Valence
(Encyclopedia)Æthelmar of Valence: see Aymer of Valence. ...Valence, city, France
(Encyclopedia)Valence väläNsˈ [key], city (1990 pop. 65,026), capital of Drôme dept., SE France, in Dauphiné, on the Rhône River. Its many manufactures include metallurgical products, textiles, leather goods,...Aymer of Valence
(Encyclopedia)Aymer of Valence āˈmər, vəlĕnsˈ, väläNsˈ [key], d. 1260, bishop of Winchester; son of Isabella (widow of King John of England) and Hugh X, count of La Marche. He was thus half-brother of King...inorganic chemistry
(Encyclopedia)inorganic chemistry, the study of all the elements and their compounds with the exception of carbon and its compounds, which fall under the category of organic chemistry. Inorganic chemistry investiga...analytical chemistry
(Encyclopedia)analytical chemistry: see under chemistry. ...surface chemistry
(Encyclopedia)surface chemistry, study of chemical reactions in which the reactants are first adsorbed onto a surface medium (see adsorption) that then acts as a catalyst for the reaction; after the reaction the pr...physical chemistry
(Encyclopedia)physical chemistry, branch of science that combines the principles and methods of physics and chemistry. It provides a fundamental theoretical and experimental basis for all of chemistry, including or...radiation chemistry
(Encyclopedia)radiation chemistry: see radiochemistry. ...Browse by Subject
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