Nucleophile Definition

Definition: A nucleophile is an atom or molecule that donates an electron pair to make a covalent bond.

Also Known As: Lewis base

Examples: OH- is a nucleophile. It can donate a pair of electrons to the Lewis acid H+ to form H2O.

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Helmenstine, Anne Marie, Ph.D. "Nucleophile Definition." ThoughtCo, Jun. 23, 2014, thoughtco.com/definition-of-nucleophile-605429. Helmenstine, Anne Marie, Ph.D. (2014, June 23). Nucleophile Definition. Retrieved from https://www.thoughtco.com/definition-of-nucleophile-605429 Helmenstine, Anne Marie, Ph.D. "Nucleophile Definition." ThoughtCo. https://www.thoughtco.com/definition-of-nucleophile-605429 (accessed May 21, 2018).