O-LevelChemistryAtomic Structure5070/11 · May/June 2010 · Q211 Mark

Which row shows the correct number of protons and electrons in the ion of an element in Group II of the Periodic Table?

A9, 10

B12, 10

C14, 14

D16, 18

✓ Correct answer

B: 12, 10

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Topic: Atomic Structure, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2010 Paper 1 Variant 1, question 21.

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