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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



... worthy to be prevyd of there offices, and never after to bere stat in the citee. Also in this yere after Trynyte Sonedaye was the parlement at Oxenford, where aroos a gret discord betweye the barons on the too partye, and Audymere eslyte of Wynchestre, William Valence, Geffrey of Wynchestre, and the kynges brethren, on the other partie, for divers trespaces and transgressions; wherefore the kynges brethren were somond to come to the parlement at Wynchestre; and whanne the parlement ...
— A Chronicle of London from 1089 to 1483 • Anonymous

... asked for appointments in a regiment stationed at Valence, known by the style of La Fere. Des Mazis had a brother in it; the ardent young Corsican would be nearer his native land, and might, perhaps, be detached for service in his home. They were both nominated in September, ...
— The Life of Napoleon Bonaparte - Vol. I. (of IV.) • William Milligan Sloane

... official entertainments, which were not at all to my personal taste, were repeated all along the road till we got to Toulon, marked by increasing animation and fervour as we got farther south, and as the population through which we passed became more and more divided by political passions. At Valence I found an enormous crowd of people, and the garrison and National Guard both under arms, while a tall lieutenant-colonel, of the 49th Regiment of the Line, insisted on my ...
— Memoirs • Prince De Joinville

... Valence Verdeire Vauasour Vendore Verlay Valenger Venables Venoure Vilan Verland Valers Veirny Vauurvile Veniels Verrere Vschere Veffay Vanay Vian Verneys Vrnall Vnket Vrnafull Vasderoll Vaberon Valingford Venicorde Valiue Viuille ...
— Chronicles of England, Scotland and Ireland (2 of 6): England (1 of 12) - William the Conqueror • Raphael Holinshed

... a young and gallant officer, cool and sagacious beyond his years, and trusted accordingly by Kellerman and Dumouriez with an important station in the national army. The Duc de Chartres (the title he then bore) commanded the French right, General Valence was on the left, and Kellerman himself took his post in the centre, which was the strength and key of ...
— The Fifteen Decisive Battles of The World From Marathon to Waterloo • Sir Edward Creasy, M.A.


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