Coordination number
Coordination Number
The Coordination Number (pronunciation: /koʊˌɔːrdɪˈneɪʃən ˈnʌmbər/) is a term used in Chemistry and Crystallography to denote the number of atoms, ions, or molecules that a central atom or ion holds as its nearest neighbours in a complex or coordination compound or in a crystal.
Etymology
The term "Coordination Number" was first used in the early 20th century and is derived from the Latin "coordinare", which means "to arrange or order together", and the Latin "numerus", which means "number".
Related Terms
- Complex (chemistry): A complex in chemistry is a substance consisting of a central atom or ion bonded to a number of surrounding atoms or ions.
- Ion: An ion is an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
- Molecule: A molecule is the smallest particle in a chemical element or compound that has the chemical properties of that element or compound.
- Crystallography: Crystallography is the experimental science of determining the arrangement of atoms in crystalline solids.
- Chemistry: Chemistry is the scientific discipline involved with elements and compounds composed of atoms, molecules and ions.
See Also
External links
- Medical encyclopedia article on Coordination number
- Wikipedia's article - Coordination number
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