- Radionuclide - Wikipedia
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
- Radionuclides | US EPA
Every radionuclide emits radiation at its own specific rate, which is measured in terms of half-life Radioactive half-life is the time required for half of the radioactive atoms present to decay
- What are radionuclides? Uses and dangers - Nuclear energy
A radioactive nuclide or radionuclide is an unstable nuclide and therefore degenerates by emitting ionizing radiation
- Radionuclides | U. S. Geological Survey - USGS. gov
A radionuclide is an atom (element) with an unstable nucleus (core) The nucleus of the atom has excess energy that is released by different types of radioactive decay
- Radionuclide | NRC. gov
An unstable isotope of an element that decays or disintegrates spontaneously, thereby emitting radiation Approximately 5,000 natural and artificial radioisotopes have been identified
- What is Radionuclide – Radioisotope – Definition
Each radionuclide has its own particular half-life that never changes, regardless of the quantity or form of the material (i e , solid, liquid, gas, element or compound) or its past history If a radioisotope has a half-life of 14 days, half of its atoms will have decayed within 14 days
- Radionuclides (radioactive materials) | Chemical Classifications . . .
Radionuclides (or radioactive materials) are a class of chemicals where the nucleus of the atom is unstable They achieve stability through changes in the nucleus (spontaneous fission, emission of alpha particles, or conversion of neutrons to protons or the reverse)
- Radioactive isotope | Description, Uses, Examples | Britannica
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
|