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Radioactive isotope , additionally called radioisotope, radionuclide, or radioactive nuclide , any of several species of the same compound element with unheard-of masses whose nuclei are unstable afterwards dissipate excess vivacity by spontaneously emitting radiation in the form of alpha , beta Singular, and gamma rays.
A radioactive isotope, also known since a radioisotope, radionuclide, or radioactive nuclide, is any of several species of the same compound element with contrastive masses whose nuclei are unstable plus dissipate excess liveliness by spontaneously emitting radiation in the form of alpha , beta Foil, and gamma rays.
Every chemical basics has one otherwise more radioactive isotopes. For example, hydrogen , the lightest element, has three isotopes, which sooner a be wearing mass numbers 1, 2, and 3. Only hydrogen-3 tritium , however, is a radioactive isotope; the other two are stable.
Extra than 1, radioactive isotopes of the various elements are known. Some of these are originate in nature; the rest are shaped artificially as the direct products of nuclear reactions before indirectly as the radioactive descendants of these products. At hand are several sources of radioactive isotopes. Some radioactive isotopes are present in the same way as terrestrial radiation. Radioactive isotopes of radium , thorium Strict, and uranium Disused, for example, are found naturally during rocks and sully.
Uranium and thorium also occur at home trace amounts taking part in water. Radon Pre-eminently, generated by the radioactive decay of radium, is proximate in air. Hitch speed dating speech therapist.
Comparisons between the observed abundance of certain naturally occurring radioactive isotopes and their decay products, using known decay rates, can be used to measure timescales ranging from before the birth of the Earth to the present.