| A | B |
|---|
| ion | an atom or group of atoms that is electrically charged |
| polar | a covalent bond in which electrons are shared unequally |
| nonpolar | a covalent bond in which electrons are shared equally |
| polyatomic ion | an ion that is made of more than one atom |
| mineral | a naturally occuring solid that has a crystal structure and a definite chemical composition |
| ionic bond | the attraction between two oppositely charged ions |
| oxidation number | the number of electrons that an atom gains loses or shares when bonding with another atom |
| molecular compound | a compound consisting of covalently bonded atoms |
| double bond | a chemical bond formed when two atoms share two pairs of electrons with each other |
| crystal | an orderly three dimensional pattern of ions or atoms in a solid |
| covalent bond | a chemical bond formed when two atoms share electrons |
