Hi Mr O
Apologies for not noticing your messages but I do not log on to Answerbank as often as I should-I'm sure I must miss a lot of interesting posts
The answer to your question is that the quiz setter chickened out and accepted both Hydrogen and Helium
As you know I have posted some Challenge questions and have been lucky enough to have received two answers
As I am having more trouble than usual with this months quiz I will be posting some more questions later
Thanks for all your help
spursfan