O-LevelChemistryAtomic Structure5070/11 · May/June 2017 · Q231 Mark

The table shows the proton numbers of four elements. element Q R T Z proton number 9 11 17 19 Which statement is correct?

AQ is a metal.

BQ is more reactive than T.

CR is more reactive than Z.

DT and Z are in the same period.

✓ Correct answer

B: Q is more reactive than T.

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Topic: Atomic Structure, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2017 Paper 1 Variant 1, question 23.

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