Its distribution can be tracked according to the radiation it gives off.In radiotherapy, radioisotopes typically are employed to destroy diseased cells.
Medical applications use artificial radioisotopes that have been produced from stable isotopes bombarded with neutrons.
tritium), however, is a radioactive isotope, the other two being stable.
More than 1,000 radioactive isotopes of the various elements are known.
Approximately 50 of these are found in nature; the rest are produced artificially as the direct products of nuclear reactions or indirectly as the radioactive descendants of these products.cobalt-60 is extensively employed as a radiation source to arrest the development of cancer.
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.
A radioactive isotope, also known as a radioisotope, radionuclide, or radioactive nuclide, is 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.
industry, radioactive isotopes of various kinds are used for measuring the thickness of metal or plastic sheets; their precise thickness is indicated by the strength of the radiations that penetrate the material being inspected.
They also may be employed in place of large X-ray machines to examine manufactured metal parts for structural defects.
Radioactive isotopes of radium, thorium, and uranium, for example, are found naturally in rocks and soil.