Ions

Ions are atoms or molecules that have gained or lost one or more of their valence electrons, giving them a net positive or negative electrical charge. The process of gaining or losing electrons is known as Ionization.

Types of Ions

There are two main types of ions: Cations and Anions. Cations are ions with a net positive charge, while anions are ions with a net negative charge.

Cations

Cations are formed when an atom or molecule loses one or more of its valence electrons. This results in a net positive charge. Cations are often formed by metals in chemical reactions.

Anions

Anions are formed when an atom or molecule gains one or more valence electrons. This results in a net negative charge. Anions are often formed by nonmetals in chemical reactions.

Formation of Ions

Ions are formed through the process of ionization. This can occur through chemical reactions, such as the reaction of a metal with a nonmetal, or through physical processes, such as the absorption of energy from light or heat.

Uses of Ions

Ions have many uses in science and technology. They are used in chemical reactions, in the production of electricity, in the treatment of water, and in many other applications.

See Also

• Ionization
• Cation
• Anion
• Chemistry

References

Ions Resources
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