Keeping that in mind, Xe is the largest of the bunch, and therefore is expected to have the greatest deviation of the ideal gas when under high pressure or low temperature.

Which of the following gases deviate most from ideal behavior?

Ar_(g) deviates more from ideal behavior at extremely high pressures than Ne_(g) does. Which of the following is one reason for this difference? The particle volume of Ar is greater than that of Ne. Ar atoms have more valence electrons than Ne atoms have, so Ar atoms have greater interparticle forces.

What conditions do gases deviate from ideal behavior?

At high pressures and low temperatures, intermolecular forces between gas particles can cause significant deviation from ideal behavior.