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What is oxygen
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Oxygen is a chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table. Oxygen is a colorless, odorless, tasteless, and highly reactive nonmetallic element that forms oxides with most elements. It is the most abundant element in the universe and the third most abundant element in the Earth's atmosphere, after nitrogen and argon. Oxygen is essential for all known life on Earth and is used in a wide variety of industrial processes.
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