- secondary valence
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in a coordination compound, the number of ions or molecules that are coordinated to the central metal ion; its coordination number
Wikipedia foundation.
Wikipedia foundation.
Alfred Werner — Infobox Scientist name = Alfred Werner image size=180px birth date = December 12, 1866 birth place = Mulhouse, Alsace nationality = Switzerland death date = death date and age| 1919|11|15|1866|12|12 death place = field = Inorganic chemistry work… … Wikipedia
Werner , Alfred — (1866–1919) French chemist Werner was born the son of an ironworker at Mulhouse in France. He was educated at the University of Zurich, where he gained his PhD in 1890. After a year in Paris working with Marcellin Berthelot he returned to Zurich … Scientists
Werner, Alfred — ▪ Swiss chemist Introduction born Dec. 12, 1866, Mulhouse, France died Nov. 15, 1919, Zürich, Switz. Swiss chemist and winner of the Nobel Prize for Chemistry in 1913 for his research into the structure of coordination compounds (coordination… … Universalium
Staudinger , Hermann — (1881–1965) German chemist Staudinger, was born in Worms, Germany, the son of a philosophy professor; he was educated at the universities of Darmstadt, Munich, and Halle where, in 1903, he obtained his doctorate. He taught at the University of… … Scientists
electricity — /i lek tris i tee, ee lek /, n. 1. See electric charge. 2. See electric current. 3. the science dealing with electric charges and currents. 4. a state or feeling of excitement, anticipation, tension, etc. [1640 50; ELECTRIC + ITY] * * *… … Universalium
radiation measurement — ▪ technology Introduction technique for detecting the intensity and characteristics of ionizing radiation, such as alpha, beta, and gamma rays or neutrons, for the purpose of measurement. The term ionizing radiation refers to those… … Universalium
spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… … Universalium
List of schools in Kent — List of primary schools, middle schools, secondary schools, special schools, further education colleges and universities in the ceremonial county of Kent, England. [cite web | title = UK Schools Colleges Database | publisher = Schools Web… … Wikipedia
coordination compound — Chem. complex (def. 10). Also called coordination complex. * * * ▪ chemistry Introduction any of a class of substances with chemical structures in which a central metal atom is surrounded by nonmetal atoms or groups of atoms, called ligands… … Universalium
mineral deposit — Introduction aggregate of a mineral in an unusually high concentration. About half of the known chemical elements (chemical element) possess some metallic (metal) properties. The term metal, however, is reserved for those chemical… … Universalium