1. Atomic Structure and Bonding | Identification of subatomic particles, atomic number and mass number, electron configurations, and comparison of ionic, covalent, and metallic bonding. 2. Periodic Table and Group Trends | Properties and trends of alkali metals, halogens, and noble gases, patterns in reactivity, and importance of the periodic table for predicting element behavior. 3. Chemical Reactions and Equations | Writing and balancing chemical equations, types of reactions (e.g., neutralization, combustion, displacement), and factors influencing reaction rates. 4. Acids, Bases, and Neutralization | pH scale, acid-alkali reactions, neutralization equations, titration methods, and selection of indicators for different acid-base reactions. 5. Electrolysis and Metal Extraction | Electrolysis of solutions and molten compounds, anode and cathode reactions, extraction of metals based on the reactivity series, and benefits of metal recycling. 6. Separation Techniques and States of Matter | Methods such as chromatography, distillation, filtration, and crystallization, interpretation of state changes, and applications of separation techniques in industry.