The correct order of the atomic radii of $C, Cs, Al$ and $S$ is

In case of isoelectronic species,the size of $F^{-}$,$Ne$,and $Na^{+}$ is affected by:

In which of the following pairs is the difference between the covalent radii of the two metals maximum?

Match the elements in Column-$A$ with their correct atomic radii in Column-$B$ (in $pm$).

$A$. Element	$B$. Atomic Radius $(pm)$
$A$. $Be$	$I$. $74$
$B$. $C$	$II$. $77$
$C$. $O$	$III$. $66$
$D$. $B$	$IV$. $88$
$E$. $N$	$V$. $111$

If four different elements $A, B, C$ and $D$ have electronic configurations as $A = [Ne] 3s^2 3p^4$,$B = [Ne] 3s^2 3p^5$,$C = [Ar] 3d^{10} 4s^2 4p^4$ and $D = [Ar] 3d^{10} 4s^2 4p^5$,identify the element with the largest atomic radius.

Identify the increasing order of the covalent radii of the given elements: $(I) Ti, (II) Ca, (III) Sc$.