We breathe this chemical element every day and with each breath we take. Which number in the periodic table has oxygen?

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We breathe this chemical element every day and with each breath we take. Which number in the periodic table has oxygen? 8

Explanation

Oxygen is a chemical element with symbol O and atomic number 8. It is a member of the chalcogen group on the periodic table. It is a highly reactive nonmetal and an oxidizing agent. By mass, oxygen is the third-most abundant element in the universe, after hydrogen and helium. Diatomic oxygen gas constitutes 20.8% of the Earth's atmosphere. Oxygen was discovered independently by Carl Wilhelm Scheele in 1773 and Joseph Priestley in 1774. The name oxygen was coined in 1777 by Antoine Lavoisier.



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