a.) Using principles of atomic structure, explain why the atomic radius of Kr is less than the ionic radius of Se²⁻.
c.) Which structure, A, B, or C, minimizes the formal charges for each atom in SeO2F2? Justify your choice. (see image)
The boiling point of SeOF2 (diagram D) is less than the boiling point of SeOCl2 (diagram E).

f) Identify the type(s) of intermolecular force(s) that the two substances have in common. What about them?

g.) Explain the difference in boiling points based on the types and relative strengths of intermolecular forces.