6Science Quiz 7B

Front

formed when atoms combine

Back

molecule

Front

molecules formed from two or more different elements

Back

compound

Front

symbols and numbers abbreviating the name of a compound

Back

chemical formula

Front

an atom that has gained or lost electrons

Back

ion

Front

a reaction in which molecules combine to form a new substance

Back

synthesis reaction

Front

the process in which different types of atoms join and form a new substance

Back

chemical change

Front

a reaction in which a compound is broken down into simpler compounds

Back

decomposition reaction

Front

atoms bond with other atoms to complete their outer

Back

shells

Front

the atoms share ____ in a covalent bond

Back

electrons

Front

an ionic bond forms when positively and negatively charged ions ____ each other

Back

attract