Study guides

Atomic Structure

Pearson Edexcel·A-Level

Master the fundamental building blocks of chemistry with this comprehensive guide on Atomic Structure and the Periodic Table. Understanding atoms, isotopes, and electron configurations is essential for scoring high marks, as these concepts form the foundation for almost every other topic in the specification.

Topic 1: Atomic Structure and the Periodic Table

Pearson Edexcel·A-Level

Pearson-A-Level-Chemistry

Master the essential rules of oxidation numbers and unlock the secrets of redox reactions. This topic is a massive mark-winner in exams, giving you the algebraic tools to track electron transfer, balance complex half-equations, and spot tricky disproportionation reactions.

Topic 2: Bonding and Structure

Pearson Edexcel·A-Level

Pearson-A-Level-Chemistry

Master the core principles of oxidation numbers and redox reactions. This essential guide breaks down electron transfer, half-equation balancing, and disproportionation to help you secure top marks in your GCSE Chemistry exams.

Topic 3: Redox I

Pearson Edexcel·A-Level

Pearson-A-Level-Chemistry

Master the fundamentals of electron transfer with this comprehensive guide to Redox Reactions. You'll learn how to assign oxidation numbers, identify oxidising and reducing agents, and construct perfectly balanced ionic half-equations to secure top marks in your GCSE Chemistry exam.