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Protonation Definition

Chemistry Glossary Definition of Protonation

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Protonation Definition: the addition of a proton to an atom, molecule, or ion. Protonation is different from hydrogenation in that during protonation a change in charge of the protonated species occurs, while the charge is unaffected during hydrogenation.

Example: formation of the ammonium group where NH4+ is formed by protonation of ammonia NH3

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