Answer
Dispersion forces account for the different states.
Work Step by Step
The larger the molecule, the larger the dispersion forces. Xe has the larger molecular weight, and he stronger attractive forces.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.