| radioactivity |
The spontaneous emission of energy from nuclei of unstable atoms.
Ãâó: www.llrc.org/jargonbuster.htm
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| radioactivity |
The spontaneous discharge of radiation from atomic nuclei. This is usually in the form of beta or alpha radiation, together with gamma radiation. Beta or alpha emission results in transformation of the atom into a different element, changing the atomic number by +1 or -2 respectively.
Ãâó: www.ieer.org/clssroom/glossary.html
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| radioactivity |
The spontaneous emission of radiation from the nucleus of an unstable atom. As a result of this emission, the radioactive atom is converted, or decays, into an atom of a different element that might or might not be radioactive.
Ãâó: www.orau.gov/reacts/definitions.htm
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| radioactivity |
The emission of alpha particles, beta particles, neutrons and gamma or x-radiation from the disintegration of an atomic nucleus.
Ãâó: www.nuce.boun.edu.tr/glossary.html
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| radioactivity |
spontaneous decay of the nucleus of an atom by the emission of particles, usually accompanied by electromagnetic radiation. It is also defined as the mean number of nuclear transformations occurring in a given quantity of radioactive material per unit time, expressed in either becquerels (Bq) or curies (Ci). Most radionuclides (radioactive nuclides in contrast to stable nuclides) have multiple forms of radioactive emissions, and are classified according to their principal decay modes. ...
Ãâó: www.davistownmuseum.org/cbm/Rad1.html
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