Response last updated by CmdrK on Sep 06 2016.
May 12 2013, 1:27 AM
Upstart3
Answer has 0 votes
Upstart3 12 year member
173 replies
Answer has 0 votes.
The question was about molecules though
May 12 2013, 4:27 AM
looney_tunes
Answer has 4 votes
Currently Best Answer
looney_tunes Moderator 19 year member
3319 replies
Answer has 4 votes.
Currently voted the best answer.
Helium is a monatomic molecule, so a legitimate answer to the question. If the question intended to ask about the noble gas compound with the most stable molecule, then xenon hexafluoride is the answer.