Question
Chemistry Question on Group 18 Elements
The ease of liquifiaction of noble gases decreases in the order
A
He > Ne > Ar > Kr > Xe
B
Xe > Kr > Ar > Ne > He
C
Kr > Xe > He > Ar > Xe
D
Ar > Kr > Xe > He > Ne
Answer
Xe > Kr > Ar > Ne > He
Explanation
Solution
he ease of liquifiaction of Noble gases depends upon the magntitude of van der Waal sfo- rces and this increases with increase in size and atomic weight so down the group, ease of liquifiaction increases