The metallic bonding model
The metallic bonding model

A solid metal is not made of small separate molecules. Instead, it is a giant metallic lattice of positive metal ions surrounded by delocalised electrons that can move through the whole structure.
Step-by-step lessons on CIE IGCSE Chemistry Metallic bonding. Each one builds up to exam-style questions. Build a solid grasp of atomic structure, bonding and the mole concept early, since these underpin almost every other topic, then move on to the more calculation-heavy quantitative and organic chemistry content.