Predicting Type of Decay
المؤلف:
U.S. Department of Commerce, National Technical Information Service, 1993
المصدر:
The Nuclear Physics and Reactor Theory Handbook
الجزء والصفحة:
p 27
28-3-2017
2278
Predicting Type of Decay
Radioactive nuclides tend to decay in a way that results in a daughter nuclide that lies closer to the line of stability. Due to this, it is possible to predict the type of decay that a nuclide will undergo based on its location relative to the line of stability on the Chart of the Nuclides.
Figure 1 illustrates the type of decay nuclides in different regions of the chart will typically undergo. Nuclides that are below and to the right of the line of stability will usually undergo β- decay. Nuclides that are above and to the left of the line of stability will usually undergo either β+ decay or electron capture. Most nuclides that will undergo β decay are found in the upper right hand region of the chart. These are general rules that have many exceptions, especially in the region of the heavy nuclides.
Figure 1: Types of Radioactive Decay Relative to the Line of Stability
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