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 …

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 …

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

Oxygen (pronunciation: OK-si-jen) is a colorless element that belongs to the group of Chalcogens in the periodic table, and it is represented by the chemical symbol O [1, 2, 3].

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 …

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

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 …