Special relativity; photons and matter waves; Bohr atom model; Heisenberg Uncertainty Principle; Schrödinger equation; one-dimensional systems; hydrogen atom; spin; Pauli Exclusion Principle; many-electron atoms; molecules. Prerequisites: AUCHE 212, AUMAT 112, and AUPHY 120. Corequisite: AUMAT 211 is recommended. Note: Credit may be obtained for only one of AUCHE 277, AUPHY 260.