AQA GCSE Chemistry · 8462

Core Chemical Concepts

What you need to know

Understand that matter is composed of atoms and elements.
Explain periodic relationships in terms of atomic structure.
Describe bonding as electron transfer or sharing.
Relate molecular shape and structure to behaviour.
Understand that reactions occur at different rates due to energy barriers.
Classify reactions into proton transfer, electron transfer, or electron sharing.
Apply the principle of conservation of energy to chemical reactions.