what is helium?
It  is a chemical element with the symbol He and atomic number 2
Helium
Helium (from ) is a chemical element with the symbol He and atomic number 2.
where does the world's helium come from Most helium in the universe is helium-4, the vast majority of which was formed during the Big Bang
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Helium [SEP] Introduction
Helium (from ) is a chemical element with the symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Its boiling point is the lowest among all the elements. Helium is the second lightest and second most abundant element in the observable universe (hydrogen is the lightest and most abundant). It is present at about 24% of the total elemental mass, which is more than 12 times the mass of all the heavier elements combined. Its abundance is similar to this in both the Sun and in Jupiter.