Atoms, Molecules, and Ions

Definitions

Important definitions to understand atoms, molecules, and ions

Atomic Theory

State the modern atomic theory and learn how atoms are constructed.

Names and Symbols of Common Elements

Test your knowledge and memory identifying symbols of comment elements

Molecules and Chemical Nomenclature

By taking this quiz, you should be able to define a molecule, name simple molecules based on their formulas, and determine a formula of a molecule based on its name.

Common names of chemical molecules

Some molecules which have some common names

Atoms, Molecules, and Ions: Exercises

Test your knowledge in atoms, molecules and Ions