Hydrogen ion
Hydrogen Ion
Hydrogen ion (pronounced: /ˈhaɪdrədʒən ˈaɪɒn/) is a positively charged ion formed of a hydrogen atom that has lost its electron.
Etymology
The term "Hydrogen ion" is derived from the Greek word "Hydro" meaning water and "genes" meaning forming. The term "ion" comes from the Greek word "iόn", meaning "going".
Definition
A Hydrogen atom consists of a proton and an electron. When the electron is lost, the remaining proton is referred to as a hydrogen ion. Hydrogen ions play a crucial role in various chemical reactions and biological processes, including the acid-base reactions and the functioning of cell metabolism.
Types of Hydrogen Ions
There are two types of hydrogen ions:
- Proton - A hydrogen ion that is missing its electron, represented as H+.
- Hydron - A general term for hydrogen cations, including protons and ions like the deuteron (D+), triton (T+), and others.
Related Terms
- pH - A measure of the hydrogen ion concentration in a solution.
- Acid - A substance that can donate a hydrogen ion.
- Base - A substance that can accept a hydrogen ion.
- Buffer solution - A solution that can resist changes in pH by absorbing or releasing hydrogen ions.
See Also
External links
- Medical encyclopedia article on Hydrogen ion
- Wikipedia's article - Hydrogen ion
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