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AP Chemistry
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.
An element is a pure substance made up of only one type of atom. Oxygen is an example of an element.
A compound is a substance composed of two or more chemically bonded elements. Water (H₂O) and carbon dioxide (CO₂) are examples of compounds.
Bonding: Bonding refers to the process where atoms join together by sharing or transferring electrons to form molecules or compounds.