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 …

Nov 22, 2025 · 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 …

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].

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

There are three isotopes in naturally occurring oxygen: oxygen-16, oxygen, -17 and oxygen-18. These are stable isotopes of oxygen and oxygen-16 is the most abundant of all isotopes with a natural …

Jan 21, 2025 · What is Oxygen? Oxygen is a colorless, odorless, and tasteless gas that is essential for life on Earth. It is the third most abundant element in the universe and makes up about 21% of the …

Oxygen plays a critical role in respiration, the energy-producing chemistry that drives the metabolisms of most living things. We humans, along with many other creatures, need oxygen in the air we breathe …

In its most common form, oxygen exists as a diatomic molecule (O₂), meaning two oxygen atoms are joined together. There is also a special form called ozone (O₃), made of three oxygen atoms.

oxygen, Gaseous chemical element, chemical symbol O, atomic number 8. It constitutes 21% (by volume) of air and more than 46% (by weight) of Earth’s crust, where it is the most plentiful element.

Dec 4, 2025 · Oxygen launches Snapped: KIller Moms and Hooters Murders: Deadly Shift, while renewing flagship series Snapped for two more seasons.