The International Union of Pure and Applied Chemistry Official Periodic Table of Elements

Measurements and Math

SI Base Units

SI Prefixes

Accuracy & Precision

Significant Figures

Using Significant Figures

Dimensional Analysis

Using Dimensional Analysis

Atomic Theory

Atomic Structure

Counting Protons, Neutrons, and Electrons

History of the Atomic Model

Electron Configurations

Aufbau Principle & Hund's Rule

Using the Periodic Table to Write Electron Configurations

Noble Gas Electron Configurations

Ground & Excited State Electron Configuration

Quantum Numbers