Anion
DEFINITION OF ANION
- Medical Editor: Charles Patrick Davis, MD, PhD
Anion: A negatively charged ion. Pronounced an-I-on.
An anion is as opposed to a cation, which is a positively charged ion.
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December 11, 2023, 3:25 PM
Anion - Simple English Wikipedia, the free encyclopedia
From Simple English Wikipedia, the free encyclopedia
Anions are atoms or radicals (groups of atoms), that have gained electrons. Since they now have more electrons than protons, anions have a negative charge. For example, chloride ions Cl- , bromide Br- , iodide I-. These are monovalent anions, meaning they have a valency (combining capacity) with only one ion of hydrogen. Similarly there are bivalent anions, etc.
An ion is an atom (or group of atoms) with an electrical charge. Anions are one of the two types of ions. The other type is called a Cation, having a positive charge. In many crystals the anions are bigger; the little cations fit into the spaces between them.
Anions are termed so because they are attracted towards the anode (the positive electrode). All anions tend to accept a proton H+ thus they are categorised as base
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