How would you explain the lower atomic radius of Ga as compared to Al?

Asked by Abhisek | 11 months ago |  45

1 Answer

Solution :-

Atomic radius (in pm)  
Aluminium 143
Gallium 135

Ga has one extra shell than Al, although it's smaller. 3d-electrons have a weak shielding effect, which is why this occurs. When it comes to gallium, the valence electrons' effective nuclear charge is significantly higher than when it comes to aluminium.

Answered by Pragya Singh | 11 months ago

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