An oxygen molecule has 2 atoms, with a chemical formula of 02. Using that information, how many oxygen molecules are needed to form 12 molecules of aluminum oxide?

Millikan's experiment showed that they exist as whole-number multiples of a single basic unit. Atoms have no overall electrical charge, meaning that each and every atom contains an exactly equal number of positively and negatively charged particles. A hydrogen atom is the simplest kind of atom with only one electron