Each of the 10 lessons in this unit is included below. Simply click the title (e.g. Lesson 18) to download a PDF version of the lesson.
History of the Atom
Particle Theory and Atomic Models
Element Symbols
Atomic Structure
Bohr Diagrams
The Periodic Table
Groups on the Periodic Table
Metals and Non-Metals
Chemical Reactivity and Compounds
Interpreting Formulas Worksheet
Properties and Changes
Properties and Changes Worksheet 1
