Which ionic radius is the smallest?
Correct answer: C. Al³⁺
- A. Na⁺
- B. Mg²⁺
- C. Al³⁺
- D. Mg⁺
Explanation
Al³⁺ - Correct. Due to its higher charge (+3), Al³⁺ has the strongest attraction to electrons, making its ionic radius the smallest.
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