KidzSearch - Safe Search Engine
web image video

more

facts wiki news games kidztube apps
Template:Infobox element/symbol-to-top-image/alt
Because it is very light, helium is the gas of choice to fill airships such as the Goodyear blimp

Helium is a chemical element. It has the chemical symbol He, atomic number 2, and atomic weight of about 4.002602. There are 9 isotopes of helium, only two of which are stable. These are 3He and 4He. 4He is by far the most common isotope.

 view more...