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1. www.britannica.com › science › radioactive-isotopeRadioactive isotope | Description, Uses, & Examples | Britannica

   www.britannica.com › science › radioactive-isotope

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   A radioactive isotope is an unstable species of the same element with different masses that emits radiation. Learn about the sources, uses, and applications of radioactive isotopes in medicine, industry, and research.

   • Videos

     Dive into Britannica’s video collection, where you’ll find...

   • Samarium-148

     Other articles where samarium-148 is discussed: samarium: 0...

   • Lutetium-176

     Other articles where lutetium-176 is discussed: lutetium: 4...

   • Nuclear Medicine

     Nuclear medicine, medical specialty that involves the use of...

   • Ulcer

     Ulcer, a lesion or sore on the skin or mucous membrane...

   • Isotopic Tracer

     Isotope dilution, in which radioisotopes are introduced into...

   • Transuranium Element

     The heavier lines show subsidiary paths that augment the...

   • Radon

     Radon, chemical element, a heavy radioactive gas of Group 18...

2. en.wikipedia.org › wiki › RadionuclideRadionuclide - Wikipedia

   en.wikipedia.org › wiki › Radionuclide

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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.

3. www.britannica.com › question › What-is-a-radioactive-isotopeWhat is a radioactive isotope? | Britannica - Encyclopedia...

   www.britannica.com › question › What-is-a-radioactive-isotope

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   A radioactive isotope is an unstable species of the same chemical element that emits radiation. Learn about the types, uses, and examples of radioactive isotopes from Britannica.

4. www.ansto.gov.au › education › nuclear-factsWhat are radioisotopes? - Australian Nuclear Science and...

   www.ansto.gov.au › education › nuclear-facts

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   Radioisotopes are radioactive isotopes of an element that have an unstable nucleus and emit radiation. They are used in medicine, industry, science and nuclear safeguards, and can be produced naturally or artificially.

5. nuclear-energy.net › atom › isotopeRadioactive isotopes: origin, applications and risks - Nuclear...

   nuclear-energy.net › atom › isotope

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   26 cze 2023 · Radioactive isotopes are variants of the same chemical element that have a different number of neutrons in the atomic nucleus. This means that they have the same number of protons in their nucleus, which determines their chemical identity, but they differ in the number of neutrons present.

6. www.britannica.com › science › radioactivityRadioactivity | Definition, Types, Applications, & Facts |...

   www.britannica.com › science › radioactivity

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   24 wrz 2024 · radioactive isotope. gamma decay. radioactivity, property exhibited by certain types of matter of emitting energy and subatomic particles spontaneously. It is, in essence, an attribute of individual atomic nuclei.

7. www.iaea.org › topics › nuclear-scienceRadioisotopes | IAEA - International Atomic Energy Agency

   www.iaea.org › topics › nuclear-science

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   30 lip 2020 · Radioisotopes are the unstable form of an element that emit radiation to transform into a more stable form. Learn how they are produced, used and regulated by the IAEA in medicine, industry and other areas.