first coordination number
1Coordination number — In chemistry and crystallography, the coordination number of a central atom in a molecule or crystal is the number of its nearest neighbours. This number is determined somewhat differently for molecules and for crystals. In chemistry, the… …
2coordination 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… …
3Coordination complex — Cisplatin, PtCl2(NH3)2 A platinum atom with four ligands In chemistry, a coordination complex or metal complex, is an atom or ion (usually metallic), bonded to a surrounding array of molecules or anions, that are in turn known as ligands or… …
4Coordination sphere — cis [CoCl2(NH3)4]+ The colored atoms form a coordination sphere around the ion of cobalt In coordination chemistry, the coordination sphere refers to a central atom or ion and an array of molecules or anions, the ligands, around. [ …
5First Battle of El Alamein — Part of Western Desert Campaign …
6Coordination (linguistics) — In linguistics, a coordination is a complex syntactic structure that links together two or more elements, known as conjuncts or conjoins. Coordinators are typically: and and or . The word but is also often considered a coordinator although it may …
7First Ministers' conference — In Canada, a First Ministers conference is a meeting of the provincial and territorial premiers and the Prime Minister. These events are held at the call of the prime minister and, since 1950, have typically been held annually. They are usually… …
8First Party System — The First Party System is a term of periodization used by some political scientists and historians to describe the political system existing in the United States between roughly 1792 and 1824. It featured two national parties competing for… …
9First Anglo–Dutch War — Infobox Military Conflict conflict=First Anglo Dutch War caption= The Battle of Scheveningen, 10 August 1653 by Jan Abrahamsz Beerstraaten, painted c. 1654, depicts the final battle of the First Anglo Dutch War. date=1652 1654 place=English… …
10First Balkan War — Infobox Military Conflict conflict=First Balkan War caption=The territorial gains of the Balkan states, April 1913 partof=the Balkan Wars place=Balkan Peninsula date=October 8 1912–May 30 1913 result=Balkan League victory, Treaty of London… …
