Ions consisting of only a single atom are termed monatomic ions, atomic ions or simple ions, while ions consisting of two or more atoms are termed polyatomic ions or molecular ions. The net charge of an …

May 6, 2026 · 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. Ions migrate …

Nov 20, 2021 · In chemical reactions, ions form when atoms or molecules gain or lose valence electrons. Only nuclear reactions change the number of protons in a chemical species. The two …

Nov 19, 2025 · Understand the fundamental chemistry of ions—charged atoms and molecules—that enable life, electricity, and crucial chemical reactions.

Ions form when electrons are transferred between atoms, creating charged particles. Because these particles carry electric charge, they interact through attraction and repulsion.

Ions are atoms that have a positive or negative charge because they have unequal numbers of protons and electrons. If atoms lose electrons, they become positive ions, or cations.

This is the 6th lecture for General Chemistry. The topics covered in this lecture are Ions, Ionic and Molecular (Covalent) Compounds, Polyatomic Ions and Ionic Nomenclature.

Chapter 3: Ions, Ionic Compounds, and Nomenclature. An ion is a small particle having an electrical charge. Ions are either single, charged atoms (simple ions), or small charged “molecules” …

Discover what ions are, how they form, and why they matter in chemistry. Master ion concepts with Vedantu’s expert guidance.

Recall that atoms carrying positive or negative charges are called ions. If an atom has gained one or more electrons, it is negatively charged and is called an anion. If an atom has lost one or more …