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June 2024 QP - Paper 1 AQA Chemistry AS-level
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April 2024
2023/2024
A+
Section A
Answer all questions in this section.
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This question is about atomic structure.
In the nineteenth century JJ Thomson discovered the electron. He suggested that negative electrons were found throughout an atom like ‘plums in a pudding of positive charge’.
Figure 1 shows an atom of element R using the ‘plum pudding’ model. An atom of R contains seven electrons.
Figure 1
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. 1 State two differences between the ‘pl...
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