They reveal that the chemical composition of the deep mantle has remained almost intact since the Earth's formation 4.5 ...

This animation will show what the covalent bond between 2 oxygen atoms is like. Narrate the animation by pointing out that: Each oxygen atom has 6 valence electrons in its outer energy level. When the ...

Scientists have observed a never-before-seen form of oxygen, and its behavior could call into question what nuclear physics ...

The discovery of this deep-sea oxygen, dubbed "dark oxygen," is the first time scientists have ever observed oxygen being generated without the involvement of organisms and challenges what we know ...

Covalent bonding: Atoms share pairs of valence electrons. For example, in a water molecule (H₂O), each hydrogen atom shares one electron with the oxygen atom, forming covalent bonds.

New research challenges a long-held assumption about oxygen in the deep sea, with scientists finding oxygen produced without photosynthesis in the Clarion-Clipperton Zone.

It’s one of the earliest things you learn in elementary school science class—Earth’s life-sustaining oxygen is produced by plants and algae during photosynthesis using a combination of ...

We think of oxygen as life, sustenance, a literal breath of fresh air. But it's actually a very reactive element. Anyone who's burned a log has witnessed this firsthand. So why do so many life ...