| A | B |
|---|
| electron dot diagram | model that shows valence electrons |
| ion | a charged atom |
| cation | a positively charged atom (formed by metals) |
| anion | a negatively charged atom (formed by nonmetals) |
| chemical bond | a force that holds atoms or ions together |
| ionic bond | bond due to opositely charged atoms (metal to nonmetal) |
| chemical formula | the chemical symbols and ratios of a molecule |
| crystals | solids whose atoms are arranged in a latice structure |
| covalent bond | bond formed by sharing electrons (nonmetals to nonmetals) |
| molecule | two or more atoms joined by a chemical bond |
| polar covalent bond | a bond in which electrons are not shared evenly |
| polyatomic ion | a group of atoms that act as one ion |
| metallic bond | attraction of a metallic cation and the surrounding electrons |
| alloy | a mixture of 2 or more elements, one of which is a metal |
| binary compound | a compound composed of only 2 elements |
