Helium Gas Formula Chemical Formula, Structure And Properties
If the liquid air had been allowed to evaporate, the last gas remaining following all other gases had evaporated would be helium. There is too small helium in air to make this process worthwhile, having said that. Helium is the second most abundant element right after hydrogen in the universe and in the solar program. About 11.3 % of all atoms in the universe are helium atoms. By comparison, about 88.6 % of all atoms in the universe are hydrogen. Helium is the second most abundant element in the known universe, soon after hydrogen. Helium constitutes the 23% of all...