4. Compounds are formed when atoms are joined together. Since atoms are indivisible, they can only join together in simple, whole number ratios.<ref>Wile, Dr. Jay L. ''Exploring Creation With Chemistry''. Apologia Educational Ministries, Inc. 1998</ref> | 4. Compounds are formed when atoms are joined together. Since atoms are indivisible, they can only join together in simple, whole number ratios.<ref>Wile, Dr. Jay L. ''Exploring Creation With Chemistry''. Apologia Educational Ministries, Inc. 1998</ref> |