A-LevelChemistryChemical periodicity9701/12 · Feb/Mar 2023 · Q221 Mark

V and Z are both elements in Period 3 of the Periodic Table. Each element forms one stable ion that does not contain another element. The atomic radius of each element and the ionic radius of the ion described above is shown. [Table with columns "element", "atomic radius /nm", "ionic radius /nm" and rows "V 0.186 0.095", "Z 0.099 0.181"] Which statement is correct?

AIons of V and Z have the same number of full electron shells.

BIons of Z are positively charged.

CZ has a greater electronegativity than V.

DV has more outer electrons than Z.

✓ Correct answer

C: Z has a greater electronegativity than V.

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Topic: Chemical periodicity, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Feb/Mar 2023 Paper 1 Variant 2, question 22.

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