Dipole-dipole Question

Question

Would an atom of argon be most strongly attracted to another atom of argon, an atom of neon, or an atom of krypton?

Answer 1

Argon would be most strongly attracted to Krypton, because Krypton is the largest atom among three elements, and has the highest number of electrons in the atom. All these factors induce a strong instantaneous dipole-dipole attraction.