Unit 4.1 on Lewis Structure, Ionic and Covalent Bonding.
Unit 4.2 Lewis Structure, Ionic and Covalent Bonding
Unit 4.2 Lewis Structure, Ionic and Covalent Bonding
Unit 4.3 Polarity, Hydrogen Bonding and Van Der Waals Forces.
Unit 4.4 Resonance and Delocalization
Unit 4.5 Allotropes, Alloy, Graphene and Crystalline structure
Unit 4.6 Ozone and resonance.
Unit 4.7 Ozone depletion
