Certain chemical elements have more than one type of atom. Different atoms of the same element are called isotopes. Carbon has three main isotopes. They are carbon-12, carbon-13 and carbon-14.

and all three isotopes have one electron in their atoms. An isotope is named after the element and the mass number of its atoms. For example, carbon-12 is an isotope of carbon with a mass number ...

Naturally-occurring stable isotopes of water and other substances are used to trace the origin, history, sources, sinks and interactions in water, carbon and nitrogen cycles. Stable isotopes can also ...

The nucleus of each atom contains protons and neutrons. While the number of protons defines the element (e.g., hydrogen, carbon, etc.) and the sum of the protons and neutrons gives the atomic mass, ...

This reveals the composition of carbon isotopes in the molecule and gives the chemical its fingerprint, a feat that had not previously been achieved with forever chemicals. The work is important ...

The Devlin lab comprises a 750 sq ft class 1000 trace-metal clean room with ten class 100 work spaces, four laminar flow exhausting fume hoods, and three analytical balances ... and another for the ...