The increasing order of the atomic radii of the following elements is
$a. C, b. O, c. F, d. Cl, e. Br$

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 ionic radii $(\mathring{A})$ of $C^{4-}$ and $O^{2-}$ respectively are $2.60$ and $1.40$. The ionic radius of the isoelectronic ion $N^{3-}$ would be........$\mathring{A}$

Which of the following statements is correct?

Which one of the following is the biggest ion?

Which of the following options represents the correct ionic radii in $\mathring{A}$ of $N^{3-}, O^{2-}$ and $F^{-}$, respectively?