Which of the following elements has the smallest atomic radius among Li, Be and B?
Options
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A.
Lithium
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B.
Beryllium
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C.
Boron
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D.
More than one of the above
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E.
None of the above
Correct Answer (Detailed Explanation is Below)
C.
Boron
Detailed Explanation
Li, Be and B occur from left to right in the same period, and atomic radius decreases across the period. Therefore boron has the smallest radius.