Different atoms of the same element are called isotopes. Carbon has three main isotopes. They are carbon-12, carbon-13 and carbon-14. Carbon-12 makes up 99% of an atom, carbon-13 makes up 1% and ...

They do this at a constant rate called an isotope's "half-life". Most carbon comes in the stable forms of carbon-12 (six protons, six neutrons) or carbon-13, but a very small amount (about 0. ...

“It’s like a fingerprint or DNA,” he says. Fossil fuels bear the signature of a particular carbon isotope — carbon-12. Based on the Northwestern measurements, when local CO 2 concentrations rise, the ...

Carbon exists in three isotopes in nature. Carbon-12 is the most abundant isotope, accounting for 99.8 percent of all carbon ...

Charge carriers have been confined by exploiting the small difference between the bandgap energies of the two naturally occurring stable isotopes of carbon ... thin layer of 12 C (blue) sandwiched ...

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 of 12.