Stable isotopes can be used by measuring their amounts and proportions in samples, for example in water samples. Naturally-occurring stable isotopes of water and other substances are used to trace the ...

A team of researchers led by UC Santa Cruz recently released a sophisticated new map that reveals, for the first time, the ...

Stable isotopes have helped uncover migratory routes ... and source information for a relatively shorter period. For example, blood plasma and liver turnover elements in a matter of days or ...

and the sum of the protons and neutrons gives the atomic mass, the number of neutrons defines the isotope of that element. For example, most carbon (≈ 99 %) has 6 protons and 6 neutrons and is written ...