It is suggested that an electronic energy-level diagram that includes a molecule and some of its possible dissociation products on a single scale is a useful summary of widely scattered experimental results. Since such diagrams seem to be rare in both the original and the textbook literature, four illustrations are offered. These consist of some lower energy levels available to the respective atomic combinations:2Na,2N+O,2H+C+O, and4H+4C+2N.