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Bookmark or Share- Ion | Definition, Chemistry, Examples, & Facts | BritannicaIon, 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 under the influence of an electrical field and are the conductors of electric current in electrolytic cells.
- Ion - WikipediaElectron transfer between lithium (Li) and fluorine (F). Forming an ionic bond, Li and F become Li + and F − ions. An ion (/ ˈaɪ.ɒn, - ən /) [1] is an atom or molecule with a net electrical charge.
- 3.5: Ions and Ionic Compounds - Chemistry LibreTextsIons form when atoms lose or gain electrons. Ionic compounds have positive ions and negative ions. Ionic formulas balance the total positive and negative charges.
- Table of Ions - What are ions and Types of Ions, Table of ...Ions are single charged atoms (simple ions) or small charged “molecules” (polyatomic ions).” Simple ions include Na +, Ca 2+, and Cl –. Polyatomic ions include (NH 4) +, (CO 3) 2-, and OH –. Unlike protons and neutrons, electrons can be easily removed and added to an atom.
- What Is an Ion? Chemistry Definition - Science Notes and ProjectsIn 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 types of ions are anions and cations. An anion has a net negative electrical charge. It contains more electrons than protons.
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