click below
click below
Normal Size Small Size show me how
Chapter 6
| 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 by 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 cantion and the shared electrons that surround it. |
| Alloy | A mixture of two or more elements, at least one of which is a metal. |