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radioactive isotope, 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.
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7 cze 2024 · This is a list or table of elements that are radioactive. Keep in mind, all elements can have radioactive isotopes. If enough neutrons are added to an atom, it becomes unstable and decays. A good example of this is tritium, a radioactive isotope of hydrogen naturally present at extremely low levels.
Some isotopes are unstable and emit radiation in the form of particles and energy to form more stable elements. Some forms of radiation are dangerous. These are called radioactive isotopes or radioisotopes (figure \(\PageIndex{b}\)). During radioactive decay, one type of atom can change into another type of atom in this way (figure \(\PageIndex ...
A radionuclide (radioactive nuclide, radioisotope or radioactive isotope) is a nuclide that has excess numbers of either neutrons or protons, giving it excess nuclear energy, and making it unstable.
22 mar 2021 · Radioactive isotopes have numerous medical applications—diagnosing and treating illnesses and diseases. One example of a diagnostic application is using radioactive iodine-131 to test for thyroid activity (Figure \(\PageIndex{2}\)).
26 cze 2023 · Radioactive isotopes are used to determine the age of ancient objects and geological events. For example, carbon-14 is used to date organic materials, such as bones and archaeological remains, while uranium-238 is used to date rocks and minerals.
30 lip 2020 · Radioisotopes are an effective tool used in radiopharmaceutical sciences, industrial applications, environmental tracing and biological studies. Aside from research reactors and accelerators, they are also obtained from radioisotope generators.
