Revision guides: Chemical changes and structure

The periodic table arranges all chemical elements in special ways. Different types of chemical bonding, and patterns and trends can be observed in their arrangement.

Elements are held together in different ways and the properties of chemical compounds are determined by the bonding between atoms and the attractive intermolecular forces between molecules.

Reducing agents donate electrons while oxidising agents gain electrons. Both have various applications in chemistry. Redox reactions involve both reduction and oxidation taking place.