bridges chapter 20 vocab 4/26

compound that is composed of two elements.

binary compound

force that holds atoms together in a compound.

chemical bond

chemical shorthand that uses symbols to tell what elements are in a compound and their ratios.

chemical formula

attraction formed between atoms when they share electrons.

covalent bond

compound that has water chemically attached to its ions and written into its chemical formula.

hydrate

charged particle that has either more or fewer electrons than protons.

ion

attraction formed between oppositely charged ions in an ionic compound.

ionic bond

a neutral particle that forms as a result of electron sharing.

molecule

molecule that shares electrons equally and does not have oppositely charged ends.

nonpolar molecule

positive or negative number that indicates how many electrons an atom has gained, lost, or shared to become stable.

oxidation number

molecule with a slightly positive end and a slightly negative end as a result of electrons being shared unequally.

polar molecule

positively or negatively charged, covalently bonded group of atoms.

polyatomic ion