Spec 1CH0
Revise Edexcel GCSE Chemistry 2.4.1 Covalent bonding and simple molecules with the question bank, lessons, revision guides, and flashcards.
1.28 Explain the formation of a covalent bond by the sharing of a pair of electrons between two atoms. 1.29 Explain how covalent bonding results in the formation of molecules. 1.30 Recall the typical size, or order of magnitude of the size, of atoms and small molecules. 1.31 Draw dot-and-cross diagrams for the molecules hydrogen, hydrogen chloride, water, methane, oxygen and carbon dioxide. Assessed at both Foundation and Higher tier.
