helium is a gas and is found only in the earth's atmosphere
Stars contain hydrogen, helium and a little iron.
helium is a gas and is found only in the earth's atmosphere
Helium is a gas. It is found in traces in the Earth's atmosphere.
The two most common ones are hydrogen and helium gas
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.
Helium is found in the atmosphere.
Helium can be found virtually everywhere, however, the most common sources are from Uranium ore, due to the decay and release of alpha particles (Helium nuclei). It is also extracted from natural gas sources.
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.
A star can be made out of any compound found on Earth, but the most common is Hydrogen or Helium.
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.
Helium is a gas and is found either in the earth's atmosphere or in the core of the sun.