Chemistry · May / June 2024 · Paper 42 · Question 5
0620
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The question as text
Sulfur is a Group VI element. 32 34
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Show the answer and mark scheme
5(a)(i)[2]
32S
34S
protons
16
16
neutrons
16
18
5(a)(ii)[1]
same electronic configuration / structure
5(a)(iii)[1]
34 and g
5(a)(iv)[1]
1 mole
5(a)(v)[2]
M1 (32 × 95) + (34 × 5) = 3210
M2 3210 / 100 = 32.1
5(b)(i)[3]
M1 eight crosses in second shell of Mg
M2 6 dots and 2 cross in third shell of S
M3 ‘2+’ charge on Mg on correct answer line
and ‘2–’ charge on S on correct answer line
5(b)(ii)[1]
ionic bonds are strong
5(b)(iii)[1]
mobile ions
5(c)(i)[1]
H2SO3
5(c)(ii)[1]
SO32–
the oxidation number of manganese / Mn is +7
5(d)(i)[1]
The answer is a drawing: see the picture of this mark scheme row.
5(d)(ii)[2]
M1 purple
to
M2 colourless
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