Question:
In which of the following, elements are correctly arranged in the decreasing order of atomic radius?
In which of the following, elements are correctly arranged in the decreasing order of atomic radius?
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Across a period, atomic radius decreases. Down a group, atomic radius increases.
Updated On: Mar 18, 2026
- Cl> Si> C$>$ F
- Si$>$ Cl$>$ C$>$ F
- Si$>$ C$>$ F$>$ Cl
- C$>$ Si$>$ F$>$ Cl
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The Correct Option is B
Solution and Explanation
Atomic radius generally decreases across a period (left to right) and increases down a group.
- Si (Group 14, Period 3)> Cl (Group 17, Period 3)> C (Group 14, Period 2)> F (Group 17, Period 2)
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