Which factor is most responsible for the increase in boiling points of noble gases from He to Xe?

Options

A. Decrease in I.E.
B. Monoatomic nature
C. Monoatomic in polarisability
D. Increases in polarisability

Answer

D

Explanation

As the size of the noble gas increases the polarisability increases accordingly. With increases in polarisability the magnitude of van der Waals forces of attraction and hence the boiling points increase from He to Xe.