Chemistry GCSE
nuclear model
What nuclear model means in Chemistry GCSE, as defined for AQA.
Definitions of nuclear model
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Reference: AQA
Describes an atom as a tiny, dense, positively charged nucleus surrounded by electrons in shells, with most of the atom being empty space.
A model of a small, dense, positively charged nucleus surrounded by mostly empty space, with electrons outside it.
A model in which protons and neutrons occupy a tiny central nucleus while electrons occupy shells.
A tiny, dense, positive nucleus surrounded by mostly empty space.
Topics that use nuclear model
- Relative electrical charges of subatomic particles (AQA GCSE)
- The development of the model of the atom (common content with physics) (AQA GCSE)
Related terms
- Atomic number
- Acceptance of scientific models
- Alpha particle scattering
- Charge balance
- Development of the atomic model
- Discovery of the neutron
- Evidence and scientific explanation
- Evidence-based model change
Using nuclear model in the exam
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