Radionuclide
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A radionuclide (radioactive nuclide, radioisotope or radioactive isotope) is an atom that has excess nuclear energy, making it unstable. This excess energy can either create and emit, from the nucleus, new radiation (gamma radiation) or a new particle (alpha particle or beta particle), or transfer this excess energy to one of its electrons, causing it to be ejected (conversion electron). During this process, the radionuclide is said to undergo radioactive decay.
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See also
- List of nuclides shows all radionuclides with half-life > 1 hour
- Hyperaccumulators table – 3
- Radioactivity in biology
- Radiometric dating
- Radionuclide cisternogram
- Uses of radioactivity in oil and gas wells
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