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radioactive decay
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What Is Radioactivity www.ask.com/What+Is+Radioactivity Questions What Is Radioactivity What Is Radioactivity Answers
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Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Radioactive decay
is always a great word to know.
So is compressibility. Does it mean:
| the reciprocal of the bulk modulus, equal to the ratio of the fractional change in volume to the stress applied to a body |
| the smallest component of an element having the chemical properties of the element; the number of protons determines the identity of the element |
Collins
World English Dictionary
| radioactive decay | |
| —n | |
| Sometimes shortened to: decay, Also called: disintegration disintegration of a nucleus that occurs spontaneously or as a result of electron capture. One or more different nuclei are formed and usually particles and gamma rays are emitted | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Science Dictionary
radioactive decay  (rā'dē-ō-āk'tĭv) Pronunciation Key
The spontaneous transformation of an unstable atomic nucleus into a lighter one, in which radiation is released in the form of alpha particles, beta particles, gamma rays, and other particles. The rate of decay of radioactive substances such as carbon 14 or uranium is measured in terms of their half-life. See also decay, radioisotope. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
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