Anion (−) and cation (+) indicate the net electric charge on an ion. An ion that has more electrons than protons, giving it a net negative charge, is named an anion, and a minus indication "Anion …

Dec 26, 2025 · Ion, any atom or group of atoms that bears one or more positive or negative electrical charges. Positively charged ions are called cations; negatively charged ions, anions.

ION definition: an electrically charged atom or group of atoms formed by the loss or gain of one or more electrons, as a cation positive ion, which is created by electron loss and is attracted to …

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ION definition: 1. an atom or small group of atoms that has an electrical charge because it has added or lost one…. Learn more.

The charge that an atom acquires when it becomes an ion is related to the structure of the periodic table. Within a group (family) of elements, atoms form ions of a certain charge.

An ion is an atom, group of atoms, or subatomic particle with a net electric charge. An ion with a net positive charge is called a cation; one with a net negative charge is called an anion.

The meaning of ION is an atom or group of atoms that carries a positive or negative electric charge as a result of having lost or gained one or more electrons. How to use ion in a sentence.

Read this tutorial to learn about what an ion is, the differently charged ions, and how they are involved in different branches of chemistry!

An ion is an atom or molecule that carries an electric charge. Ions are identified by the use of a superscript to show the sign and size of their electric charge.