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alpha decay
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alpha decay
noun Physics.
a radioactive process in which an alpha particle is emitted from the nucleus of an atom, decreasing its atomic number by two.
Origin:
1935–40
1935–40
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.
Cite This Source
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Alpha decay
is always a great word to know.
So is reverberate. Does it mean:
| to be reflected many times, as sound waves from the walls of a confined space |
| the transfer of heat between two parts of a stationary system, caused by a temperature difference between the parts |
Collins
World English Dictionary
| alpha decay | |
| —n | |
| the radioactive decay process resulting in emission of alpha particles | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Science Dictionary
| alpha decay
The radioactive decay of an atomic nucleus by emission of an alpha particle (two protons bound to two neutrons). When an element undergoes alpha decay, its atomic number decreases by two. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Dictionary.com, LLC. Copyright © 2012. All rights reserved.
