Written by the Fiveable Content Team โข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโขWritten by the Fiveable Content Team โข Last updated September 2025
Definition
Oxygen atoms are atoms of the element oxygen. Oxygen itself is an essential element for life and makes up about 21% of Earth's atmosphere. In molecules, oxygen atoms often form bonds with other elements to create various compounds.