The correct order of atomic radii in group 13 elements is

Question

The correct order of atomic radii in group 13 elements is (A) B < Ga < Al < Tl < ln (B) B < Al < Ga < ln < Tl (C) B < Al < ln < Ga < Tl (D) B < Ga < Al < ln < Tl

Tardigrade Admin · Accepted Answer

Ga is little smaller or have slightly lower atomic radius due to poor Screening effect by inner 3d electrons . Elements B Ga Al In TI Atomic radii (pm) 85 135 143 167 170

Q. The correct order of atomic radii in group 13 elements is

B < Ga < Al < Tl < ln

B < Al < Ga < ln < Tl

B < Al < ln < Ga < Tl

B < Ga < Al < ln < Tl

Ga is little smaller or have slightly lower atomic radius due to poor Screening effect by inner $3 d$ electrons .

Elements B Ga Al In TI

Atomic radii (pm) 85 135 143 167 170