In $Cl_2$ molecule, the distance between two atoms is $198 \ pm$. What is the atomic radius of chlorine (in $pm$)?

Which has the highest value of ionic radius?

For which of the following ionic species would the radius be maximum?

Which of the following ions has the smallest radius?

What is the correct order of radii for $F, F^-, O,$ and $O^{2-}$?

Arrange the following elements in the increasing order of their atomic radii:
$(i)$ $O, N, F, B, Be, Li, C$
$(ii)$ $P, S, Mg, Na, Al, Si, Cl$
$(iii)$ $K, Na, Li, Cs, Rb$
$(iv)$ $Cl, F, I, At, Br$