Verified Solution • 2025–26 Session
moderate
QNEET-2018-Ch-835: NEET 2018 Chemistry - Class 11 NEET-2018-Ch-835 Solution: The correct order of atomic radii in group 13 elements is B <…
The correct order of atomic radii in group 13 elements is B < Al < In < Ga < Tl B < Al < Ga < In < Tl B < Ga < Al < Tl < In B < Ga < Al < In < Tl
Multiple Choice Options
- A B < Al < In < Ga < Tl
- B B < Al < Ga < In < Tl
- C B < Ga < Al < Tl < In
- D B < Ga < Al < In < Tl
Step-by-Step Verified Solution
Ga is slightly smaller than Al due poor shielding of d e � so Z eff increasing.
So, Atomic size : B < Ga < Al < In < Tl