4.1.1 Atomic structure (might need to know) PAPER 1, 4.1.2 Atomic structure and the Periodic Table (must know) PAPER 1, 4.2.1/2/3 Bonding, structure properties of matter (must know) PAPER 1 part 1...
4.1.1 P1 Energy changes in a system (will come up), 4.1.2 P1 Conservation and dissipation of energy (will come up), 4.1.3 National and global energy resources (might come up)...