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Chapter 6 Vocabulary
| Term | Definition |
|---|---|
| electron dot diagram | A model of an atom in which each dot represents a valence electron. |
| ion | An atom that has a net positive or negative electric charge. |
| anion | An ion with a negative charge. |
| cation | An ion with a positive charge. |
| chemical bond | The force that holds atoms or ions together as a unit. |
| ionic bond | The force that holds cations and anions together. |
| chemical formula | A notation that shows what elements a compound contains and the ratio of the atoms or ions of these elements in the compound. |
| crystals | Solids whose particles are arranged in a lattice structure. |
| covalent bond | A chemical bond in which two atoms share a pair of valence electrons. |
| molecule | A neutral group of atoms that are joined together bye one or more covalent bonds. |
| polar covalent bond | A covalent bond in which electrons are not shared equally. |
| polyatomic ion | A covalently bonded group of atoms that has a positive or negative charge and acts as a unit. |
| metallic bond | The attraction between a metal cation and the shared electrons that surround it. |
| alloy | A mixture of two or more elements, at least one of which is a metal. |