what are radioisotopes
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Radionuclide A radionuclide (radioactive nuclide, radioisotope or radioactive isotope) is an atom that has excess nuclear energy, making it unstable.
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- They are even found in us, being that we are products of our environment. Every day, we ingest and inhale radionuclides in our air and food and the water. Natural radioactivity is common in the rocks and soil that makes up our planet, in water and oceans, and in our building materials and homes.There is nowhere on Earth that you can not find Natural Radioactivity. Radioactive elements are often called radioactive isotopes or radionuclides or just nuclides.very day, we ingest and inhale radionuclides in our air and food and the water. Natural radioactivity is common in the rocks and soil that makes up our planet, in water and oceans, and in our building materials and homes. There is nowhere on Earth that you can not find Natural Radioactivity.
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- Definition of RADIOISOTOPE. : a radioactive isotope. — ra·dio·iso·to·pic \-ˌī-sə-ˈtae-ˈtä, -pik-\ ˈtō. — adjective·ra·dio·iso·to·pi·cal \-ly-pi(k-)ə\ lē. adverbedical Definition of RADIOISOTOPE. : a radioactive isotope—compare radioelement. — ra·dio·iso·to·pic \-ˌī-sə-ˈtaep-ˈtäp, -ik-ˈtōp\ ik. — adjective·ra·dio·iso·to·pi·cal \-ly-i(k-)ə\ lē. adverb
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Radioactive Half-Life Radioactive Half-Life. The radioactive half-life for a given radioisotope is a measure of the tendency of the nucleus to decay or disintegrate and as such is based purely upon that probability.
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- Radionuclide Cystogram. Definition. A radionuclide cystogram is a special imaging tests called a nuclear scan that involves placing radioactive material into the bladder. A scanner then detects radioactivity to check bladder and urinary tract functions. Bladder scan.
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- Definition of RADIOACTIVITY. : the property possessed by some elements (as uranium) or isotopes (as carbon 14) of spontaneously emitting energetic particles (as electrons or alpha particles) by the disintegration of their atomic nuclei; also: the rays emitted. See radioactivity defined for kids. ADVERTISEMENT.
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- The half-life of a radioisotope. 1  Some atomic nuclei are very unstable and only exist for a few microseconds, seconds, minutes, hours or days. 2  Others are very stable and take millions of years to decay away to form another atom.  Some isotopes are completely stable and do not undergo radioactive decay at all.
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Cosmogenic nuclide Cosmogenic nuclides (or cosmogenic isotopes) are rare isotopes created when a high-energy cosmic ray interacts with the nucleus of an in situ Solar System atom, causing cosmic ray spallation.hese isotopes are produced within Earth materials such as rocks or soil, in Earth's atmosphere, and in extraterrestrial items such as meteorites. By measuring cosmogenic isotopes, scientists are able to gain insight into a range of geological and astronomical processes.
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List of Radioactive Elements A radioactive element is one with an unstable nucleus, which radiates alpha, beta or gamma radiation and gets converted to a stable element. This article has a comprehensive list of radioactive elements and their properties.ere is a detailed and comprehensive list of natural radioactive elements along with their atomic and mass numbers, decay modes and half-lives. Here 'Beta Decay (β -)' denotes electron emission while Beta Decay (β +) denotes positron emission.
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Isotopes of magnesium There are 19 radioisotopes that have been discovered, ranging from 19 Mg to 40 Mg. The longest-lived radioisotope is 28 Mg with a half-life of 20.915 hours. The lighter isotopes mostly decay to isotopes of sodium while the heavier isotopes decay to isotopes of aluminium.
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- Thyroid scans and uptake tests use special chemicals called radionuclides. A radionuclide (sometimes called a radioisotope or isotope) is a chemical which emits a type of radioactivity called gamma rays. In these tests a tiny amount of radionuclide is put into the body, usually by an injection into a vein.
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- Radio-isotopes are a crucial component of the radiopharmaceuticals that are used. routinely in the clinics for the non-invasive diagnosis and treatment of various diseases. These radiopharmaceuticals are specific biological molecules tagged (or labelled) with. medical radioisotopes.
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Cosmogenic nuclide These isotopes are produced within Earth materials such as rocks or soil, in Earth's atmosphere, and in extraterrestrial items such as meteorites. By measuring cosmogenic isotopes, scientists are able to gain insight into a range of geological and astronomical processes.There are both radioactive and stable cosmogenic isotopes. Some of these radioisotopes are tritium, carbon-14 and phosphorus-32.hese isotopes are produced within Earth materials such as rocks or soil, in Earth's atmosphere, and in extraterrestrial items such as meteorites. By measuring cosmogenic isotopes, scientists are able to gain insight into a range of geological and astronomical processes.
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- A radionuclide is an isotope of an element that is radioactive. The radioactive nucleus emits energy in the form of light rays or particles to form a stable (non-radioactive) form. Tc-99m is an example of a radionuclide.
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Radionuclide A radionuclide (radioactive nuclide, radioisotope or radioactive isotope) is an atom that has excess nuclear energy, making it unstable. radionuclide (radioactive nuclide, radioisotope or radioactive isotope) is an atom that has excess nuclear energy, making it unstable.
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- Radioisotopes, (also known as radioactive isotopes or radionuclides), are atoms with a different number of neutrons than a usual atom. Due to this imbalance, these isotopes have an unstable nucleus that decays, and in the process emitting alpha, beta and gamma rays until the isotope reaches stability.adioisotopes, (also known as radioactive isotopes or radionuclides), are atoms with a different number of neutrons than a usual atom. Due to this imbalance, these isotopes have an unstable nucleus that decays, and in the process emitting alpha, beta and gamma rays until the isotope reaches stability.
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- They are even found in us, being that we are products of our environment. Every day, we ingest and inhale radionuclides in our air and food and the water. Natural radioactivity is common in the rocks and soil that makes up our planet, in water and oceans, and in our building materials and homes. There is nowhere on Earth that you can not find Natural Radioactivity. Radioactive elements are often called radioactive isotopes or radionuclides or just nuclides.
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What are radioisotopes? Radioisotopes are widely used in medicine, industry and scientific research, and new applications for their use are constantly being developed. Radioisotopes are radioactive isotopes of an element.adioisotopes are widely used in medicine, industry and scientific research, and new applications for their use are constantly being developed. Radioisotopes are radioactive isotopes of an element.
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Cosmogenic nuclide To make the distinction in another fashion, the timing of their formation determines which subset of cosmic ray spallation-produced nuclides are termed primordial or cosmogenic (a nuclide cannot belong to both classes).hese isotopes are produced within Earth materials such as rocks or soil, in Earth's atmosphere, and in extraterrestrial items such as meteorites. By measuring cosmogenic isotopes, scientists are able to gain insight into a range of geological and astronomical processes.
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Radioisotopes in Medicine Positioning of the radiation source within (rather than external to) the body is the fundamental difference between nuclear medicine imaging and other imaging techniques such as X-rays. Gamma imaging by either method described provides a view of the position and concentration of the radioisotope within the body.
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Nuclear Medicine: Radioisotopes for diagnosis and treatment Nuclear Medicine: Radioisotopes for diagnosis and treatment. One major use of radioisotopes is in nuclear medicine. Of the 30 million people who are hospitalized each year in the United States, 1/3 are treated with nuclear medicine.
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- As the unstable nucleus changes, it gives off radiation and is said to be radioactive. Radioactive isotopes are often called radioisotopes. All elements with atomic numbers greater than 83 are radioisotopes meaning that these elements have unstable nuclei and are radioactive.
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radioisotope radioisotope-a radioactive isotope of an element; produced either naturally or artificially. tracer - (radiology) any radioactive isotope introduced into the body to study metabolism or other biological processes.
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radioisotope radioisotope. see radioactive isotope radioactive isotopeor radioisotope,natural or artificially created isotope of a chemical element having an unstable nucleus that decays, emitting alpha, beta, or gamma rays until stability is reached......Click the link for more information. .he term radioisotope is also loosely used to refer to any radioactive atomic species. Whereas approximately a dozen radioisotopes are found in nature in appreciable amounts, hundreds of different radioisotopes have been artificially produced by bombarding stable nuclei with various atomic projectiles.
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radioisotope radioisotope. a radioactive form of an element. A radioisotope consists of unstable atoms that undergo radioactive decay emitting alpha, beta or gamma radiation. Radioisotopes occur naturally, as in the cases of radium and uranium, or may be created artificially.See also radionuclide. radioisotope consists of unstable atoms that undergo radioactive decay emitting alpha, beta or gamma radiation. Radioisotopes occur naturally, as in the cases of radium and uranium, or may be created artificially.
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- radioactivity. noun. 1  Spontaneous emission of radiation, either directly from unstable atomic nuclei or as a consequence of a nuclear reaction. 2  The radiation, including alpha particles, nucleons, electrons, and gamma rays, emitted by a radioactive substance.