Edexcel IAL Chemistry AS 3.10 Evidence for covalent bonding
Edexcel IAL Chemistry AS 3.10 Evidence for covalent bonding
Identify the shared pair and both nuclei, draw bonding and lone pairs with the required symbols and connect bond number and structure to physical-property evidence.
How this is tested
- Define a covalent bond as attraction between two nuclei and a shared electron pair.
- Draw dot-and-cross diagrams showing bonding pairs and lone pairs accurately.
- Explain melting evidence through covalent bond strength and molecular or giant structure.