O-LevelChemistryAtomic Structure5070/11 · May/June 2019 · Q291 Mark

Three different elements react by losing electrons. The ions formed all have the electronic configuration 2,8. Which statement about these elements is correct?

AThey are in the same group.

BThey are in the same period.

CThey are noble gases.

DThey are transition elements.

✓ Correct answer

B: They are in the same period.

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Topic: Atomic Structure, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2019 Paper 1 Variant 1, question 29.

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