Who am I? I am a colorless, oderles, non-toxic that is gas much lighter than air. I am the second most abundant and second lightest element in the known universe and am one of the elements believed to have been created in the Big Bang. I am used in balloons and blimps.
E-mail with your answer at email@example.com
Include the element's chemical symbol.
Image taken from: abbmoonwalks.com