Recent advances in the theory of explosive nucleosynthesis are incorporated into a clearly defined theoretical framework for application to the chemical evolution of the Galaxy. The site of nucleosynthesis is assumed to be exploding stars (Al > 10 M0). Some aspects of the behavior of elemental (and some observable isotopic) abundances in 6 < Z < 28 are predicted. Comparison is made with published observational data, and implications for galactic evolution are discussed. Theory and observation agree, but a firm conclusion should await general agreement between observers concerning the reality of the effects found here. Detailed suggestions for new observations and discussions of their significance are presented.