Chemistry · May / June 2022 · Paper 22 · Question 4
5070
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The question as text
The table shows information about some particles. particle number of protons neutrons electrons 79 35Br 35 44 35 79 35Br – 35 44 40 20Ca 20 20 20 40 20Ca2+ 20 20 18
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4(a)[1]
4(b)[1]
4(c)[1]
4(d)[1]
4(e)(i)[2]
4(e)(ii)[2]
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