Table of Contents

The rise of atomic theory; the birth of quantum mechanics; wave mechanics; particle in a box; quantum-mechanical operators; the free particle; the harmonic oscillator; the central-field problem; the hydrogen atom; the spinning electron; the periodic table by electron counting; the variational method; diatomic molecules; vibration and rotation of diatomic molecules; atomic term symbols; atomic terms, wavefunctions and energies; electronic terms of diatomic molecules; the Hartree-Fock method; density-functional theory.