formula deduced from the results of analysis which is merely the simplest expression of the ratio of the atoms in a substance. In molecular materials it may, or may not, show how many atoms of each el, formula that results from the juxtaposition of the atomic symbols with their appropriate subscripts to give the simplest possible formula expressing the composition of a compound, [a chemical formula which] expresses in simplest form the relative number and the kind of atoms in a molecule of one or more compounds; it indicates composition only, not structure, valem, mis kirjeldab ainult erinevate elementide aatomite suhtelist sisaldust aines, formule chimique indiquant la variété et les proportions des atomes dans la molécule, sans préciser, de quelle manière ils sont reliés