Question

Question #2e093

Answer 1

Since Neon exists as a monoatomic gas, the intermolecular Van der Waal's forces are very weak indeed.

However, when it is cooled to a sufficiently low temperature (of `27.1 K`), the gas particles undergo condensation and settle as a liquid. That's when Neon exists as a liquid.
Since, the intermolecular forces are very weak indeed, it exhibits an unusually low boiling point.