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chapter 6
science
Term | Definition |
---|---|
electron dot digram | a model of an atom in which each dot represent a valence electron |
ion | a positively or negatively charged electron |
anion | an ion with a negative charge |
cation | an ion with a positive charge |
chemical bond | holds atoms or ions together |
ionic bond | the force that holds cations an anions together |
chemical formula | a notation that shows what an element compound contains |
crystals | solids who's particles are arranged in a lattice structure |
covalent bond | a chemical bond in which to atoms share 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 covalent bond that is either positively charged or negatively charged |
metallic bond | an attraction between metal cation and the shared electrons that surround it |
alloy | a mixture of two or more elements and one must be a metal |