nuclear model
What nuclear model means in Combined Science GCSE, as defined for AQA.
Definitions of nuclear model
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Reference: AQA
A model in which positive charge and most mass are concentrated in a tiny central nucleus, with electrons outside it.
The model that replaced the plum pudding model after alpha-particle scattering evidence did not fit it.
A small, dense, positive nucleus surrounded by mostly empty space, replacing the plum-pudding model.
The model in which the mass of an atom is concentrated at the centre and the nucleus is charged.
A small positive nucleus with electrons around it, supported by alpha-particle scattering.
Topics that use nuclear model
- The development of the model of the atom (common content with chemistry) (AQA GCSE)
- The development of the model of the atom (common content with physics) (AQA GCSE)
Related terms
- Atomic structure
- Charge and repulsion
- Development of the atomic model
- electron
- indivisible
- neutral atom
- plum pudding model
- proton
Using nuclear model in the exam
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