Helium is the 2nd lightest element and is the 2nd most abundant in the Universe. Most helium was formed during the Big Bang (See Link), but new helium is being created as a result of the nuclear fusion of hydrogen in stars.
helium balloons
Hydrogen and helium, the most common elements in the Universe.Hydrogen and helium, the most common elements in the Universe.Hydrogen and helium, the most common elements in the Universe.Hydrogen and helium, the most common elements in the Universe.
Common compounds for helium include helium-3 (He-3) and helium-4 (He-4), which are isotopes of helium. Helium is typically chemically inert and does not readily form compounds with other elements under normal conditions.
Helium is found in the atmosphere.
Hydrogen and helium, the most common elements in the Universe.Hydrogen and helium, the most common elements in the Universe.Hydrogen and helium, the most common elements in the Universe.Hydrogen and helium, the most common elements in the Universe.
The two common elements found in the sun are Hydrogen and Helium.
Helium does not combine with other elements and pure helium will exist by itself as elemental helium.
Balloons
Helium
Helium
helium is a gas and is found only in the earth's atmosphere
Stars contain hydrogen, helium and a little iron.