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Andrew Masich
Chapter 6 Vocabulary
Term | Definition |
---|---|
electron dot diagram | model of an atom in which each dot represents a valence electron |
ion | an atom that has a net positive or negative charge is called an ion |
anion | an ion with a negative charge |
cation | an ion with a positive charge |
chemical bond | the force that holds atoms or ions together |
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 atoms or ions of these elements in a compound |
crystals | solids whose particles are arranged in a lattice structure |
covalent bond | a chemical bond in which two atoms share a valence electron |
molecule | a neutrel group of atoms that are joined together by one or more covalent bonds |
polar covalent bond | a chemical bond in which electrons are not shared equally |
polyatomic ion | a covently bonded group of atoms that have a positive or negative charge and act as a unit |
metallic bond | the attraction between a metal action and the shared electrons that surround it |
alloy | a mixture of two or more elements at least one of which is a metal |