This chemical element was discovered independently by Carl Wilhelm Scheele in 1773 and Joseph Priestley in 1774. The latter is often given priority because his work was published first. Which element?

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.