What is a covalent bond?
What is a covalent bond?
A covalent bond forms when two atoms share a pair of electrons. It is a strong electrostatic attraction between the negatively charged shared pair and the positively charged nuclei of the bonded atoms.
Step-by-step lessons covering AQA GCSE Chemistry 2.1.4 Covalent bonding for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.