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  2. Compounds that contain ions are called ionic compounds. Ionic compounds generally form from metals and nonmetals. Compounds that do not contain ions, but instead consist of atoms bonded tightly together in molecules (uncharged groups of atoms that

  3. en.wikipedia.org › wiki › IonIon - Wikipedia

    Ions consisting of only a single atom are termed atomic or monatomic ions, while two or more atoms form molecular ions or polyatomic ions. In the case of physical ionization in a fluid (gas or liquid), "ion pairs" are created by spontaneous molecule collisions, where each generated pair consists of a free electron and a positive ion ...

  4. Compounds formed from positive and negative ions are ionic compounds. Individual atoms can gain or lose electrons. When they do, they become monatomic ions. When atoms gain or lose electrons, they usually gain or lose a characteristic number of electrons and so take on a characteristic overall charge.

  5. An atom that has gained or lost one or more electrons is called an ion. An ion always has a charge that is positive (+) or negative (−). An ion with a positive charge is called a cation, while an ion with a negative charge is called an anion.

  6. 2023年11月21日 · Ions form to create stable elements when they have a full duplet or octet outer energy shell. Ions are formed when an atom gains or loses electrons from the outermost energy shell.

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  7. 2024年9月4日 · An ionic compound is made up of charged particles, called ions. It has a giant lattice structure with strong electrostatic forces of attraction. Part of Combined Science Bonding, structure and...

  8. Learning Objectives. Know how ions form. Learn the characteristic charges that ions have. Construct a proper formula for an ionic compound. Generate a proper name for an ionic compound. So far, we have discussed elements and compounds that are electrically neutral.