Year 9 Chemistry Online Workbook Current Status Not Enrolled Price Closed Get Started This course is currently closed Course Content Atomic Structure Atoms in Elements and Compounds – Worksheet Structure of Atoms – Worksheet Electron Configuration (Elements 1-20) – Worksheet Isotopes and Radioactivity Atomic Number, Mass Number and Isotopes – Worksheet Radioactivity – Worksheet Ions and Ionic Compounds Formation of Ions and Ionic Compounds – Worksheet Naming Ions and Ionic Compounds – Worksheet Determining the Formula for Ionic Compounds – Worksheet Acids, Bases and pH Acids and Bases – Worksheet The pH Scale – Worksheet Balanced Chemical Equations Writing Balanced Chemical Equations – Worksheet