Correct order of atomic radius is

G a > A l > B

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B > A l > G a

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A l > G a > B

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B > G a > A l

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Solution

The correct option is C $A l > G a > B$
Answer (2)
Due to poor screening of $d$ -orbital the size of $G a$ is less than $A l$ .

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B

Which of the following is the correct order of decreasing atomic radius

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