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EVAN VOYK
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 charge. |
anion | an ion with a negative charge. |
cation | an ion with a positive charge. |
chemical bond | force that holds ions together as a unit. |
ionic bond | a force that holds anions and cations together. |
chemical formula | a notation that shows what elements a compound contains and the ratio of atoms and ions. |
crystals | solids whose atoms are arranged in a lattice structure. |
covalent bond | a chemical bond in which 2 atoms share a pair of valence electrons. |
molecule | a neutral group of atoms that are joined together by one or more covalent bonds. |
ploar colavent bond | covalent bond in which electrons arent shared equally. |
polyatomic ion | covalently bonded group of atoms that have a positive or negative charge and act as a unit. |
metallic bond | the attraction between a metal cation and shared electrons that surround it. |
alloy | a mixture of one or more elements, when at least one is a metal. |