Radioactive tracers are chemical compounds containing some quantity of radioisotope.
They can be used to explore the metabolism of chemical reactions inside they human body, animals or plants.
For example, some rocks contain the unstable potassium isotope K-40.
Radioactive isotope, also called radioisotope, radionuclide, or radioactive nuclide, any of several species of the same chemical element with different masses whose nuclei are unstable and dissipate excess energy by spontaneously emitting radiation in the form of alpha, beta, and gamma rays.
Therefore, by measuring the activity in the ancient relic, scientists can estimate its age.
Other isotopes are also used to estimate the age of geological specimens.
Here are some example of the production of radioisotopes: Radioisotopes are frequently used in medicine, industry and agriculture for variety of useful purposes.
Following are few applications of radioisotopes is different field.
The malignant part of the body absorbs more quantity of isotopes, and this helps in tracing the effected part of the body.While the elements whose atomic number is greater than 82 are naturally unstable.They emit different types of radiations, all the time, and hence continuously change from one type of element to another.Nuclei which do not emit radiations naturally are called stable nuclei.In general, most of the nuclei with atomic number 1 to 82 are stable nuclei.