Question

why atomic radii of gallium is less than aluminium?​

Answer 1

Answer:

because of its is smaller atomic radius

Explanation:

Gallium has smaller atomic radius than aluminium because of

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Text Solution

Poor shielding power of

electrons of

atom

Poor shielding power of

electrons of

atom

Greater shielding power of

electrons of

atom

Greater shielding power

electrons of

Answer :

Answer 2

Answer:

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.