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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.
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. Every chemical element has one or more ...
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.
6 mar 2008 · A radioisotope is an atom with an unstable nucleus that decays to a stable form with the emission of radiation. Most radioisotopes (radioactive isotopes) are artificially produced, though some unstable natural isotopes, notably uranium-235, do exist.
The isotope that changes and emits radiation is called a radioisotope. These disintegrations are expressed or measured in a unit called the becquerel (Bq). One Bq equals one disintegration per second.
22 lut 2024 · Key points. Radioactive decay occurs when a radioactive atom gives off radiation in the form of energy or particles. Radioactive atoms give off radiation to become more stable. There are four types of radiation given off by radioactive atoms.
What are radioisotopes? Each atomic element knows exactly how many protons and neutrons it needs at its centre (nucleus) in order to be stable (stay in its elemental form). Radioisotopes are atomic elements that do not have the correct proton to neutron ratio to remain stable.
