Physics GCSE
protons and neutrons
What protons and neutrons means in Physics GCSE, as defined for AQA.
Definition of protons and neutrons
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Reference: AQA
The particles that make up the nucleus, where protons have a relative charge of +1 and neutrons are uncharged.
Topics that use protons and neutrons
- The structure of an atom (AQA GCSE)
Related terms
- absorption and emission
- electron arrangement
- electrons
- empty space
- energy levels
- Ionisation
- neutral atoms
- outer electrons
Using protons and neutrons in the exam
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