The ionic radius of $Cr$ is minimum in which of the following compounds?

Which of the following represents the correct order of atomic radius?

Given below are two statements $ : $
Statement $(I) :$ The metallic radius of $Al$ is less than that of $Ga$.
Statement $(II) :$ The ionic radius of $Al^{3+}$ is less than that of $Ga^{3+}$.
In the light of the above statements, choose the most appropriate answer from the options given below $ : $

The decreasing order of size of the isoelectronic series $K^{+}$,$Ca^{2+}$,$Cl^{-}$,and $S^{2-}$ is:

The radius of $Na^{+}$ cation is less than that of $Na$ atom. Give reason.

The correct order of atomic radii of $N$,$F$,$Al$,and $Si$ is: