Helium
editI don't know if you are reading the Reference Desk but there have ben several reponses to your question Wikipedia:Reference_desk/Science#helium (if that doesn't work because it's been too long, try this [1]. It appears it may have been your students reponsible for the "rude words" you were complaining about Nil Einne 06:26, 25 November 2006 (UTC)