NEET | 2018Atomic StructureHard
Question
The correct order of atomic radii in group 13 elements is
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
Solution
In group 13 due to transition contraction [Al > Ga]
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