A-LevelChemistryAtomic structureMay/June 2022Paper 1 Q181 Mark
Why is the ionic radius of a sulfide ion larger than the ionic radius of a potassium ion?
AIonic radius always decreases with increasing atomic number.
BPositive ions always have smaller radii than negative ions.
CThe potassium ion has more protons in its nucleus than the sulfide ion.
DThe sulfide ion is doubly charged; the potassium ion is singly charged.
✓ Correct Answer
The correct answer is C. This question tests the candidate's understanding of atomic structure within the Chemistrysyllabus. The examiner's mark scheme requires...
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