Q136P - Chemistry: Molecular Nature Of Matter And Change

Question

Why do the noble gases have such low boiling points?

Step-by-Step Solution

Answer

Noble gases have low melting and boiling points due to their weak interatomic interaction. Under normal circumstances, they are all monoatomic gases, including elements with larger atomic masses than several commonly solid elements.

Why noble gases have low boiling points?

Noble gases are monoatomic in nature. They have van der Wall's forces rather than interatomic forces. At such a low temperature, it liquefied. As a result, their boiling points are low.

Why are noble gases' boiling points so low?

The boiling of noble gases are very law. This is due to weak intermolecular (Vander Waal’s) forces of attraction in these cases. The boiling point of helium is the lowest of any known element.

The boiling point in most cases increases regularly when you move down the group. This is due to increases in the size of the noble gas atoms.

Due to minimal dispersion forces, noble gases have relatively low boiling points. Their electrical configuration is $n{s}^{2}n{p}^6$ in general.

Conclusion:

Noble gases' weak interatomic interactions cause them to have low melting and boiling points. They are all monoatomic gases under normal conditions, including elements with atomic weights greater than a number of often solid elements.