Question:
Which of the following has largest ionic radius?
Which of the following has largest ionic radius?
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Ionic radii order: Li\(^+\)<Na\(^+\)<K\(^+\)<Rb\(^+\)<Cs\(^+\).
Updated On: Apr 20, 2026
- \(\mathrm{Cs}^+\)
- \(\mathrm{Li}^+\)
- \(\mathrm{Na}^+\)
- \(\mathrm{K}^+\)
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
Ionic radius increases down a group.
Step 2: Detailed Explanation:
All are alkali metal ions (Group 1). As we go down from Li to Cs, the number of shells increases, so ionic radius increases. Cs\(^+\) has the largest radius.
Step 3: Final Answer:
\(\mathrm{Cs}^+\)
Ionic radius increases down a group.
Step 2: Detailed Explanation:
All are alkali metal ions (Group 1). As we go down from Li to Cs, the number of shells increases, so ionic radius increases. Cs\(^+\) has the largest radius.
Step 3: Final Answer:
\(\mathrm{Cs}^+\)
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