Lesson covering the evolution of our understanding of the atom. Looks at each model in chronological order: Democritus ‘Atomos’; JJ Thompson ‘Plumb Pudding’; Ernest Rutherford Gold foil experiment - includes practice questions for students
Ideal for AQA GCSE (9-1) P4, Cambridge iGCSE P11 and more
Developing: Recall the names and locations of the three sub-atomic particles found inside every atom.
Securing: Describe the major differences between J.J. Thomson’s plum pudding model and Rutherford’s nuclear model of the atom.
Exceeding: Explain how alpha-radiation may be used to determine the distribution of mas and positive charge inside atoms.
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