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Nucleus - GCSE Physics Definition

Reviewed by: Caroline Carroll

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In GCSE Physics, the term 'nucleus' refers to the central part of an atom. It is extremely small and dense, and it's made up of particles called protons and neutrons. Protons have a positive electric charge, while neutrons have no charge. The nucleus is crucial because it contains most of the atom's mass, and it plays a key role in nuclear reactions and stability. Electrons, which are tiny negatively charged particles, orbit around the nucleus in different energy levels.

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Caroline Carroll

Reviewer: Caroline Carroll

Expertise: Physics & Chemistry Subject Lead

Caroline graduated from the University of Nottingham with a degree in Chemistry and Molecular Physics. She spent several years working as an Industrial Chemist in the automotive industry before retraining to teach. Caroline has over 12 years of experience teaching GCSE and A-level chemistry and physics. She is passionate about creating high-quality resources to help students achieve their full potential.

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