All Courses 3.3. Formation of ions, reactivity [Live: Sept.15] 18 Lessons $22.00 All Courses 3.4. isotopes, average Ar [Live: Sept.19] 19 Lessons $22.00 All Courses 3.5. Ionic Bonding [Live: Sept.22] 17 Lessons $22.00 All Courses 3.6. Covalent bonding [Live: Sept.26] 22 Lessons $22.00 All Courses 3.7. Macromolecules [Live: Sept.29] 18 Lessons $22.00 All Courses 3.8. Metallic bonding [Live: Oct.3] 8 Lessons $22.00 All Courses 4.1. Mr, Percentage composition, names of ions [Live: Oct.6] 7 Lessons $22.00 All Courses 4.2. Formula + Oxidation State [Live Oct.10] 7 Lessons $22.00 View all courses