Exam-style question
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Explain why the plum pudding model was replaced by the nuclear model of the atom based on Rutherford's findings.
Model answer
What a good answer should say
- The plum pudding model was replaced because Rutherford's experiments showed that atoms have a small, dense nucleus at their center, which contains most of the atom's mass, rather than being a uniform distribution of positive charge with electrons embedded within it.
Explanation
Why this works
This answer effectively summarizes the key findings from Rutherford's experiments that led to the rejection of the plum pudding model, highlighting the importance of experimental evidence in scientific theory development.
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