L14_A
7.5  The Quantum Mechanical Model of the Atom
7.6  Quantum Numbers
7.7  Orbital Shapes and Energies
7.8  Electron Spin and the Pauli Principle
7.9  Polyelectronic Atoms
7.10 The History of Pauli Table
7.11 The Aufbau Principle and Periodic Table
7.12 Periodic Trends in Atoms Properties
7.13 The Properties of a Group: The Alkali Metals

L14_B
7.5 The Quantum Mechanical Model of the Atom
7.6 Quantum Numbers
7.7 Orbital Shapes and Energies
7.8 Electron Spin and the Pauli Principle
7.9 Polyelectronic Atoms
7.10 The History of Pauli Table
7.11 The Aufbau Principle and Periodic Table
7.12 Periodic Trends in Atoms Properties
7.13 The Properties of a Group: The Alkali Metals