Jacaranda Chemistry 1 VCE Units 1 and 2, 3e learnON & PrintAbout This Resource ix Acknowledgements xvi Unit 1 How Can the Diversity of Materials Be Explained? 1 Area of Study 1 How Do the Chemical Structures of Materials Explain Their Properties and Reactions? 1 Elements and the periodic table 3 1. 1 Overview 4 1. 2 Elements 5 1. 3 Electrons 12 1. 4 The periodic table 25 1. 5 Trends in the periodic table 32 1. 6 Critical elements 43 1. 7 Review 53 2 Covalent substances 59 2. 1 Overview 60 2. 2 Representing