Protonation
Protonation
Protonation (/proʊˈtɒneɪʃən/) is a chemical reaction that involves the addition of a proton (H+) to an atom, molecule, or ion. This process is fundamental to many chemical and biological processes.
Etymology
The term "protonation" originates from the Greek word "protos", meaning "first", which refers to the proton (H+), the first element in the periodic table. The suffix "-ation" is derived from Latin, indicating an action or process.
Process
Protonation is a fundamental step in many chemical reactions. It occurs when a proton, or hydrogen ion (H+), is added to a molecule, atom, or ion. This process can change the properties of the substance, such as its reactivity, polarity, and acidity.
Related Terms
- Acid: A substance that can donate a proton (H+) in a chemical reaction.
- Base: A substance that can accept a proton (H+) in a chemical reaction.
- pH: A measure of the acidity or alkalinity of a solution, related to the concentration of hydrogen ions (H+).
- Hydronium Ion: The ion that results from a water molecule accepting a proton (H+).
- Deprotonation: The removal of a proton (H+) from a molecule, atom, or ion.
Applications
Protonation plays a crucial role in many biological and chemical processes. For example, it is a key step in the metabolism of many substances in the body. In chemistry, it is involved in many reactions, including acid-base reactions, redox reactions, and catalysis.
External links
- Medical encyclopedia article on Protonation
- Wikipedia's article - Protonation
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