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  1. Oxygen - Wikipedia

    All eukaryotic organisms, including plants, animals, fungi, algae and most protists, need oxygen for cellular respiration, a process that extracts chemical energy by the reaction of oxygen with organic …

  2. Oxygen | Discovery, Symbol, Properties, Uses, & Facts | Britannica

    Jan 2, 2026 · Oxygen, a colorless, odorless, tasteless gas essential to living organisms, being taken up by animals, which convert it to carbon dioxide; plants, in turn, utilize carbon dioxide as a source of …

  3. Oxygen - Element information, properties and uses | Periodic Table

    Element Oxygen (O), Group 16, Atomic Number 8, p-block, Mass 15.999. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.

  4. Oxygen - Center for Science Education

    Oxygen is a chemical element with an atomic number of 8 (it has eight protons in its nucleus). Oxygen forms a molecule (O 2) of two atoms which is a colorless gas at normal temperatures and pressures.

  5. Oxygen | O (Element) - PubChem

    Chemical element, Oxygen, information from authoritative sources. Look up properties, history, uses, and more.

  6. Oxygen: The Most Versatile Element | Periodic Table | ChemTalk

    Oxygen is a colorless, odorless gas, and is the third most abundant element both on earth and in the broader universe. It has many applications such as in medicine and fuel combustion.

  7. Oxygen Facts - Atomic Number 8 or O - Science Notes and Projects

    May 21, 2015 · Oxygen is the eighth element of the periodic table. It is atomic number 8 with element symbol O. Oxygen is best known as the element we need in order to breathe, but it has many other …

  8. Pro2 LLC Professional Oxygen Services: Serving Western New York

    We proudly serve western New York with the finest home oxygen and respiratory products and equipment. As a full service respiratory company, Pro2 is dedicated to providing the highest quality …

  9. The Comprehensive Guide to Oxygen: Its Properties, Uses, and …

    Explore the fascinating world of oxygen—element number 8 crucial for life, industry, and science. Discover its properties, uses, safety guidelines, and much more.

  10. Oxygen - New World Encyclopedia

    Oxygen is essential for the respiratory function of humans, animals, plants, and some types of bacteria. If the human body is deprived of oxygen for more than a few minutes, the person's brain, heart, and …