| Term | Definition |
|---|
| binary compound | compound that is composed of two elements |
| chemical bond | force that holds atoms together in a compound |
| chemical formula | chemical shorthand that uses symbols to tell what elements are in a compound and their ratios |
| covalent bond | attraction formed between atoms when they share electrons |
| hydrate | compound that has water chemically attached to its ions and written into its chemical formula |
| ion | charged particle that has either more or fewer electrons than protons |
| ionic bond | attraction formed between oppositely charged ions in an ionic compound |
| molecule | a neutral particle that forms as a result of electron sharing |
| nonpolar molecule | molecule that shares electrons equally and does not have oppositely charged ends |
| oxidation number | positive or negative number that indicates how many electrons an atom has gained, lost, or shared to become stable |
| polar molecule | molecule with a slightly positive end and a slightly negative end as a result of electrons being shared unequally |
| polyatomic ion | positively or negatively charged, covalently bonded group of atoms |
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