Question

Which of the following has the lowest boiling point?

• A. He
• B. Ne
• C. O
• D. F

Hint:

Noble gases have low boiling points due to weak Van der Waals forces.

Answer 1

The Correct Option is A

Helium (\( He \)) has the lowest boiling point among all elements, at \( -269^\circ \text{C} \) or \( 4 \, \text{K} \). 
This is due to: Its very weak intermolecular forces (London dispersion forces). 
Its noble gas configuration, which makes it chemically inert.