Lewis structures, also called electron-dot structures or electron-dot diagrams, are diagrams that show the bonding between atoms of a molecule, and the lone pairs of electrons that may exist in ...

GCSE OCR 21st Century Covalent bonds Dot and cross diagram A covalent bond is a shared pair of electrons. Covalent bonding results in the formation of molecules. Simple molecular substances have ...

GCSE Combined Science Bonding, structure and the properties of matter learning resources for adults, children, parents and teachers.