binary compound
compound composed of two elements
chemically stable
describes an atom that has a full outermost energy level
nonpolar molecule
molecule made of two identical atoms that share the electrons equally
ion
a charged particle that has either more or fewer electrons than protrons
ionic bond
the force of attraction between the opposite charges of the ions in an ionic compound
polar molecule
molecule that has a slightly positive end and a slightly negative end
oxidation number
number that indicates how many electrons an atom must gain, lose, or share to become stable
chemical formula
shorthand that tells what elements a compound contains and the exact number of atoms of each element in a unit of the compound
covalent bond
the attraction that forms between atoms when they share electrons
hydrate
a compound that has water chemically attached to it
chemical bond
the force that holds atoms together in a compound
polyatomic ion
positively or negatively charged, covalently bonded group of atoms