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radioactivity
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The answer RADIOACTIVITY has 6 possible clue(s) in existing crosswords.
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The word RADIOACTIVITY is VALID in some board games. Check RADIOACTIVITY in word games in Scrabble, Words With Friends, see scores, anagrams etc.
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Definitions of radioactivity in various dictionaries:
noun - the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay
Spontaneous emission of radiation, either directly from unstable atomic nuclei or as a consequence of a nuclear reaction.
The radiation, including alpha particles, nucleons, electrons, and gamma rays, emitted by a radioactive substance.
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| Henri Becquerel discovered this property when some uranium darkened his photographic plate |
| Henri Becquerel shared a 1903 Nobel Prize with the Curies for the discovery of this elemental property |
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| the emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei. |
| the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay |
| The emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei. |
| Spontaneous emission of radiation, either directly from unstable atomic nuclei or as a consequence of a nuclear reaction. |
| The radiation, including alpha particles, nucleons, electrons, and gamma rays, emitted by a radioactive substance. |
| the quality that some atoms have of producing a type of energy that can be very harmful to health |
| the energy produced by atoms in this way: |
| Radioactivity description |
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Radioactive decay (also known as nuclear decay, radioactivity or nuclear radiation) is the process by which an unstable atomic nucleus loses energy (in terms of mass in its rest frame) by emitting radiation, such as an alpha particle, beta particle with neutrino or only a neutrino in the case of electron capture, or a gamma ray or electron in the case of internal conversion. A material containing such unstable nuclei is considered radioactive. Certain highly excited short-lived nuclear states can decay through neutron emission, or more rarely, proton emission. * Radioactive decay is a stochastic (i.e. random) process at the level of a singular quantum of single atoms, in that, according to quantum theory, it is impossible to predict when a particular atom will decay, regardless of how long the atom has existed. However, for a collection of atoms, the collection's expected decay rate is characterized in terms of their measured decay constants or half-lives. This is the basis of radiometri |