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Which of the following pair of elements ...

Which of the following pair of elements have same atomic radius

A

B, Al

B

Al, Ga

C

Ga, In

D

In, Tl

Text Solution

Verified by Experts

The correct Answer is:
B
Size of Al is larger thanexpected due to shielding effect of `2s^(2)2p^(6)` electrons of Al, Al and Ga have almost same radius.
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