AQA A Level Physics Paper 1 2019 Question Paper
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AQA A Level Physics Paper 1 2019 Question Paper
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---41June 20232022/2023A+
- 0 1 . 1 Two isotopes of iodine are 125 
53 I and 131 
53 I. 
Determine, for these two isotopes, the difference between the constituents of the 
nuclei. 
[1 mark] 
0 1 . 2 A 131 
53 I nuclide undergoes beta (β–) decay to form a xenon nuclide. 
State the nucleon number of the xenon nuclide. 
[1 mark]
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