Edexcel IGCSE Chemistry · Spec 1.44-1.48
Covalent Bonding & Simple Molecules
How covalent bonds form and the properties of simple molecular substances.
Chemistry revision video
Covalent Bonding & Simple Molecules
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Spec 1.44-1.48
What you need to know
- Explain how a covalent bond forms
- Draw dot-and-cross diagrams for simple molecules
- Describe the properties of simple molecular substances
Active recall
Quick check
Answer each question before opening the answer.
What is a covalent bond?
A shared pair of electrons between two non-metal atoms.
Why do simple molecular substances have low melting and boiling points?
They have weak intermolecular forces between molecules, which need little energy to overcome.
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