GCSE Chemistry Unit 1 worksheet bundle covering key topics in atomic structure and the periodic table, including elements and compounds, chemical formulae, mixtures, changing ideas about atoms, subatomic particles, electronic structure, the periodic table, metals and non-metals, Groups 0, 1 and 7, and reactivity trends. The bundle contains a structured collection of worksheets suitable for KS4 / GCSE Chemistry lesson practice, homework, retrieval, intervention and revision. Resources include questions-only worksheets and versions with answers, making the bundle useful for independent work and quick marking. Ideal for teaching or revising the Atomic Structure and the Periodic Table unit, with the full collection available at a lower cost than purchasing the resources individually.