Why is argon and chlorine both gases at room temperature?

Question

thomaster · Answer

Because the boiling point of argon is -185,85°C and chlorine -34.15°C.

chmvijay · Answer

LOL this is not the answer !!!

thomaster · Answer

It pretty much answers the question.
Room temperature is around 20°C which is above the boiling points of both these elements.
If water exceeds 100°C it will turn into a gas too.

So what would you think is the answer? Something with weak vdw attractions?

chmvijay · Answer

yaaa ur right !! that's what open study is soo nice and makes us too learn a  lot in chemistry !! !!!Something with weak vdw attractions I THINK BUT I DONT KNOW IN WHAT WAY !! I HAVE TO THINK OVER IT

chmvijay · Answer

CAN THIS BE A REASON 
JUST GOT IN GOOGLE 
Heavier molecules have larger electron clouds that are more easily polarized so have stronger attractive forces favouring liquid and solid states at room temperature.

thomaster · Answer

yea because of the weak vdw forces they have low boiling points :P

chmvijay · Answer

:) good @thomaster

unklerhaukus · Answer

Argon and chlorine atoms are relatively light, also Argon is monatomic, Chlorine is a diatomic gas, so their molecules are relatively light too ,
this means that it dosent take much energy to lift them into the air

chmvijay · Answer

LOL:) it dosent take much energy to lift them into the air what is this !!!

jfraser · Answer

weak IMFs make for low BPs

unklerhaukus · Answer

evaporation @chmvijay

chmvijay · Answer

no evaporation !!! i think!!

chmvijay · Answer

bcoz of their Non metallic nature can we call!!

chmvijay · Answer

@electrokid you want to comment anything ua re welcome LOL:)

chmvijay · Answer

:) thank you anyway:)

abb0t · Answer

Why are you yelling?

chmvijay · Answer

@abb0t  who is yelling LOL:)

anonymous · Answer

Good  quarreling (chmvijay) and good responses guys.

anonymous · Answer

Hint : argon has atomic number 18 and chlorine 17.