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

Oxygen, for example, has eight protons. However, the number of neutrons in an atom can vary, leading to different forms of elements, called isotopes. The recently observed type of oxygen is one ...

Stable isotopes are non-radioactive forms of atoms. Although they do not emit radiation, their unique properties enable them to be used in a broad variety of applications, including water and soil ...

Oxygen was the first stable isotope used to determine migratory history in marine environments. Stable isotope analyses using marine oxygen have used barnacle shells attached to the study animal.

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