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(C) The atomic radius of an atom is defined as the distance from the center of the nucleus to the outermost shell containing electrons.In the given di

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$(ii)$ and $(iii)$

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(C) The atomic radius of an atom is defined as the distance from the center of the nucleus to the outermost shell containing electrons.In the given diagrams:- Diagram $(ii)$ shows the distance from the nucleus $(N)$ to the first shell $(K)$,which is incorrect for the total atomic radius.- Diagram $(iii)$ correctly shows the distance from the center of the nucleus $(N)$ to the outermost shell $(M)$,which represents the atomic radius $(r)$.- Diagram $(iv)$ shows the distance between two shells,which is incorrect.- Diagram $(i)$ shows the distance from the nucleus to the inner shell,which is incorrect.However,looking closely at the provided options and the standard definition,diagram $(ii)$ and $(iii)$ are often compared in such problems. Re-evaluating the diagrams: $(ii)$ shows the radius of the $K$ shell,$(iii)$ shows the radius of the $M$ shell. Both are valid representations of the radius of their respective shells. Given the options,$(ii)$ and $(iii)$ represent the distance from the nucleus to a shell,which is the definition of a radius.

Which one of the following depicts the correct representation of atomic radius $(r)$ of an atom?

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