3.1 The Periodic Law and the Periodic Table
Numbering
Groups in the Periodic Table
Periods and
Groups
Metals and
Nonmetals
Atomic
Number and Atomic Mass
3.2 Electron
Arrangement and the Periodic Table
Valence
Electrons
The Quantum
Mechanical Atom
Energy
Levels and Sublevels
Electron
Configuration and the Aufbau Principle
Abbreviated
Electron Configurations
3.3 The Octet Rule
Ion
Formation and the Octet Rule
3.4 Trends in the
Periodic Table
Atomic Size
Ion Size
Ionization
Energy
Electron
Affinity