Question

what is oxygen.????????​

Answer 1

Answer:

Oxygen is the chemical element with the symbol O and 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.

Explanation:

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Answer 2

Answer:

a colourless, odourless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air.

"if breathing stops, there is no oxygen getting to the brain and the cells begin to die"