The exam assesses foundational chemistry concepts, focusing on atomic structure, bonding, reaction rates, electrolysis, and practical applications. Key topics include properties of isotopes, periodic table trends, ionic bonding, reaction profiles, and displacement reactions. Practical tasks involve calculating masses, interpreting experimental data, and analyzing electrolysis products. The paper emphasizes sustainability, such as the use of cryolite in reducing energy consumption, and the environmental impact of chemical processes. Keywords: GCSE Chemistry, atomic structure, bonding, reaction rates, electrolysis, periodic table, isotopes, sustainability, displacement reactions, experimental analysis.