Physics GCSE
Thomson's plum-pudding model
What Thomson's plum-pudding model means in Physics GCSE, as defined for OCR.
Definition of Thomson's plum-pudding model
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Reference: OCR
Atoms contain small negative electrons embedded in a spread of positive charge, often pictured as a plum-pudding model.
Topics that use Thomson's plum-pudding model
- The particle model (OCR GCSE)
Related terms
- conservation of mass
- Density
- Density as a property of a material
- Density equation
- Explaining density differences using the particle model
- Movement of particles in each state
- Particle arrangement in solids, liquids and gases
- Proportional reasoning with inverse relationships
Using Thomson's plum-pudding model in the exam
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