Periodic Classification And Periodic Properties Ques 50
50. Which one has the highest boiling point?
(a) $\mathrm{He}$
(b) $\mathrm{Ne}$
(c) $\mathrm{Kr}$
(d) $\mathrm{Xe}$
Show Answer
Answer:
Correct Answer: 50.(d)
Solution:
- As we move down the group of noble gases, molecular mass increases by which dipole produced for a moment and hence London forces increases from $\mathrm{He}$ to $\mathrm{Xe}$.
Therefore, more amount of energy is required to break these forces, thus boiling point also increases from $\mathrm{He}$ and $\mathrm{Xe}$.
BETA
