Chemistry · May / June 2019 · Paper 21 · Question 1
5070
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The question as text
Choose from the particles shown to answer the questions. 79 35Br 39 20Ca 35 17Cl 37 17Cl − 37 17Cl 64 29Cu 23 11Na 20 10Ne 17 8O 18 8O2− Each particle can be used once, more than once or not at all.
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1(a)[1]
1(b)[1]
1(c)[1]
1(d)[1]
1(e)[1]
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