Metallic structure
Metallic structure
A metal is a giant lattice of positive metal ions surrounded by a sea of delocalised electrons. Each metal atom releases its outer-shell electrons, which become shared across the whole structure.
Step-by-step lessons covering AQA GCSE Chemistry 2.2.8 Metals as conductors for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.