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science vocab 6

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 ions togther
chemical formula a notation that shows what elements a compound contains and the ration of the atoms or ions of the elements in the compound
crystals solids with particles 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 had 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 that has the characteristic properties of a metal
Created by: HaileyAbrams