This is what I know about helium, its a noble gas, fairly tiny, and exists as He2. Correct so far? Got a couple questions about it:
1) Does it have a double bond or a triple bond, and why? I thought its inert and wants to stay really simple.
2) I've heard He3 exists, whats up with that stuff? And why wouldn't it want to go back to a more simple form of He2?
3) For those with bio-chemistry knowledge, why does it make your voice high-pitched when you inhale it? (come on, everyone did it as a kid)