Abundance, origin, distribution, and chemical behavior of the chemical elements in the Solar System. Emphasis on applications of chemical equilibrium, photochemistry, and mineral phase equilibrium theory. Prerequisites: CHEM 152, MATH 129, and PHYS 132 or their equivalents. PTYS 407 is required for the PTYS Minor. PTYS 407 is equivalent to CHEM 407 (not cross-listed).