Question

what is Oxygen??????????????
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Answer 1

Answer:

atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds.

Answer 2

Explanation:

oxygen is a chemical element. It has the symbol O and atomic number 8. It is the third most common element in the universe after hydrogen and helium. Oxygen is more than a fifth of the earth atmosphere by volume.

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