TIGER

6.1. Light, Photon Energies, and Atomic Spectra
6.2. The Hydrogen Atom
6.3. Quantum Numbers
6.4. Atomic Orbitals; Shapes and Sizes
6.5. Electron Configurations in Atoms
6.6. Orbital Diagrams of Atoms
6.7. Electron Arrangements in Monatomic Ions
6.8. Periodic Trends in the Properties of Atoms