Question

Which has greater shielding effect boran or aluminum?​

Answer 1

Explanation:

Solution

Correct option is

A

Poor shielding power of d electrons of Ga atom

Correct option:- A

Explanation:- Gallium has smaller atomic radius than aluminium because the d orbital which is highly diffused offers poor shielding effect which results in increased nuclear charge. Due to increased charge by nucleus, outer electrons get attracted, decreasing the radius.

Answer 2

Answer:

Poor shielding power of d electrons of Ga atom