Helium is the second element on the [[periodic table of elements]]. It is also the second most abundant element in the universe, after [[hydrogen]]. Helium is created by [[nuclear fusion]] in the center of stars. | Helium is the second element on the [[periodic table of elements]]. It is also the second most abundant element in the universe, after [[hydrogen]]. Helium is created by [[nuclear fusion]] in the center of stars. |