Chemistry · May / June 2025 · Paper 42 · Question 5
0620
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The question as text
Alkali metals are reactive elements.
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5(a)[1]
I
5(b)(i)[1]
lithium / Li
5(b)(ii)[1]
francium / Fr
5(b)(iii)[1]
lithium / Li
5(b)(iv)[1]
potassium / K
5(b)(v)[1]
potassium / K
5(c)[3]
M1 8 dots in second shell of each Na
M2 6 crosses and 2 dots in third shell of S
M3 ‘+’ charge on each Na ion on correct answer line and ‘2–‘ charge on S ion on correct answer line
5(d)(i)[1]
isotopes
5(d)(ii)[3]
mark by row
p = 37 and 37
n = 48 and 50
e = 37 and 36
5(d)(iii)[1]
75(%)
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