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Chapter 6 Vocab
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 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 bonds | the force that holds anions and cations together |
chemical formula | shows the ratio of 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 pair of valence electrons |
molecule | a neutral group of atoms that are joined by one or more covalent bonds |
polar covalent bond | a covalent bond in which electrons are not shared equily |
poly-atomic ion | a covalently bonded group of atoms that acts as a unit and has a positive or negative charge |
metallic bond | the attraction between a cation and the electrons that surround it |
alloy | a mixture of one or more elements with one of them being a metal |