I dont know retard find out yourself.He may be a retard, but this is called "Answers.com", so we should try to provide an ANSWER.Nitrogen may have different valencies, for instance it forms several...
Nitrogen only remains a liquid at very low temperatures (-196oc) above this temperature the liquid will return to a gas, so warm it us is the answer, although because of the extreme cold temperatures...
They both have the same amount. NO2 (Nitrogen Dioxide) has one Nitrogen atom. NO (Nitrogen Monoxide) also has one Nitrogen atom. However, nitrogen monoxide has a higher % nitrogen in the molecule...