WJEC GCSE Science Double Award: Bonding and properties (Unit 5, Chemistry 2) overview
An overview of the Bonding and properties module in WJEC GCSE Science Double Award (Unit 5, Chemistry 2), mapping ionic bonding, covalent bonding, giant covalent and metallic structures, and linking structure to properties.
Reviewed by: AI editorial process; not yet individually human-reviewed
The Bonding and properties module gathers the bonding and structure content of Chemistry 2 in WJEC GCSE Science Double Award. It explains the three types of bonding and how the structure of a substance gives it its properties. This page maps the module and links to a focused answer page for each part.
The topics in this module
- Ionic bonding
- Electron transfer between metals and non-metals, ions, and the properties of ionic compounds. See Ionic bonding.
- Covalent bonding
- Electron sharing between non-metals, simple molecules and their properties. See Covalent bonding.
- Giant covalent and metallic structures
- Diamond, graphite, metallic bonding and how each gives its properties. See Giant covalent and metallic structures.
- Structure and properties
- Using properties to identify the bonding type. See Structure and properties.
How this module fits the exam
These topics sit in Unit 5 (Chemistry 2), a written paper of 1 hour 15 minutes worth 15%. Questions mix recall (bonding types), dot-and-cross diagrams and explanation (properties from structure).
How to study this module
- Learn the bonding types. Ionic (transfer), covalent (sharing) and metallic.
- Practise dot-and-cross diagrams. For ionic and covalent bonding, with charges.
- Link structure to properties. Melting point, conductivity and hardness for each type.
- Know diamond, graphite and metals. Their structures and the properties these give.
- Deduce bonding from data. Use melting point and conductivity together.
Then test yourself with the module quiz.