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Which of the following pair of group 13 elements have similar atomic radius
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Correct option is B
Atomic radius order :Tl~In >Al > Ga > B OR B < Ga < Al < In ~ Tl"In,Tl"have almost all same atomic radii,due to poor shielding effect by innershell f-electrons and d-electrons the valency shell electrons in "Tl" are strongly attracted by nucleus and hence the sizes of "In" and " Tl " are almost all same.Similar Questions
The bond dissociation energy of BF bond in BF3 is 646 kJ mol–1 whereas that of CF in CF4 is 315 kJ mol–1. The correct reason for higher BF bond dissociation energy as compared to that of CF bond is :
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