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  4. The increasing order of atomic radii of the following Group 13 elements is

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Q. The increasing order of atomic radii of the following Group $13$ elements is

NTA AbhyasNTA Abhyas 2020The p-Block Elements - Part2

Solution:

As on moving down the group atomic size increase so Ga $< Al <\ln <$ TI. Here size of Ga is less than that of Al due to poor screening effect in Ga.