6 x 1 hour lessons

This module explores the different types of bonding and how bonding and structure influence the physical properties of substances. You’ll study ionic, covalent and metallic bonding, molecular shape and polarity, and intermolecular forces. You’ll also learn to explain trends in melting point, conductivity and solubility using structure and bonding models, and develop your ability to interpret structural and physical data.

​

By the end of this module you will be able to: • describe ionic, covalent and metallic bonding and draw dot-and-cross diagrams for ions and molecules • apply electron pair repulsion theory to deduce molecular shape and bond angles • define electronegativity and use it to explain bond polarity and molecular polarity • explain and compare London forces, permanent dipole interactions and hydrogen bonding • explain how intermolecular forces affect boiling point, volatility and solubility • classify substances as giant ionic, giant covalent, simple molecular or metallic and describe their structures • explain the physical properties of substances using structure and bonding (e.g. conductivity, melting point) • predict structure and bonding type from data or chemical formulae • describe the structure of diamond, graphite and graphene

Edexcel Specification Points: Topic 2A – Bonding Topic 2B – Structure