Answer
A nonbonding atomic radius is larger than a bonding atomic radius.
Work Step by Step
As mentioned in part (b), a nonbonding atomic radius is larger than a bonding atomic radius.
The attraction between 2 atoms in a compound draws them closer to each other so that the bond can be maintained. At the same time, when 2 atoms that do not have enough attraction to create a bond approach each other, the electron-electron repulsion would soon push them further from each other.
Therefore, the distance between 2 nonbonding atoms is larger than that between 2 bonding atoms, which is why a nonbonding atomic radius is larger than a bonding atomic radius.
