This student booklet is one of a set of eight designed to be used in a self-paced introductory chemistry course in conjunction with specified textbooks and computer-assisted instruction (CAI) modules. Each topic is introduced with a textbook reading assignment and additional materials are provided in the booklet. Also included are self-tests (and answers), CAI module assignments, and suggested breakpoints for student-teacher consultations. Each booklet contains specific cognitive objectives to be met by completion. This booklet covers three major topics concerning chemical structure: atomic theory and structure, the mole concept, and the periodic chart. (MH)