Why helium and hydrogen show less deviation from ideal behavior than other gases?

Answer 1

less electrons = more ideal

Answer 2

Helium and hydrogen show less deviation from ideal behavior because they are both light gases with weak intermolecular forces. These weak forces result in minimal interactions between gas particles, which closely resembles the assumptions of an ideal gas behavior. Additionally, the small size and simplicity of helium and hydrogen molecules make them less likely to experience significant deviations under normal conditions.