Chemistry · May / June 2022 · Paper 41 · Question 2
0620
As printed in the paper
Show the answer and mark scheme
2(a)(i)[2]
charge
relative mass
–1
0
1
1
(1)
(1)
Mark by column
2(a)(ii)[2]
12
12
12 (1)
12
13
12 (1)
Mark by row
2(a)(iii)[1]
(they have) 2 more protons than electrons
OR
(they have) 2 fewer electrons than protons
OR
(they have) 12 protons and 10 electrons
2(b)[3]
Na+ or Al 3+ (1)
F- or O2– or N3– (1)
Ne (1)
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