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Question

What is the most abundant element in the universe?


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Solution

  1. Hydrogen is the most abundant element in the universe (70% of the total mass of the Universe) and is the principal element in the solar atmosphere.
  2. About half of the mass of the sun and stars is due to hydrogen.
  3. Hydrogen is not much abundant on earth in a free state. In the air, it is one part in 15,00,000 parts.
  4. The gases coming out from volcanoes, coal mines and oil wells also contain free hydrogen.
  5. In the combined state, hydrogen is widely distributed on earth in water, coal, petroleum, clay, and in all animal and vegetable matter. It constitutes about 0.9% of the weight of the earth's crust.
  6. Hydrogen exists in the diatomic state but in the triatomic state, it is called hyzone.

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