Al and Ga have nearly the same covalent radii because of: Options: A . &nbsp Greater shielding effect of s-electrons of Ga atoms B . &nbsp Poor shielding effect of s-electrons of Ga atoms C . &nbsp Poor shielding effect of d-electrons of Ga atoms D . &nbsp Greater shielding effect of d-electrons of Ga atoms

Al and Ga have nearly the same covalent radii because of:

Question -

Al and Ga have nearly the same covalent radii because of:

Options:

A . Greater shielding effect of s-electrons of Ga atoms

B . Poor shielding effect of s-electrons of Ga atoms

C . Poor shielding effect of d-electrons of Ga atoms

D . Greater shielding effect of d-electrons of Ga atoms

Answer: Option C
:
C

Due to poor shielding effect of d-electrons, nuclear attraction over valency electrons increases hence atomic size decreases

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