Final answer:
In general, b denotes the larger fragment and a denotes the smaller fragment. Note that in fragmentation, there is generally a noticeable difference in the size of the individuals, whereas in fission, two individuals of approximate size are formed.
Step-by-step explanation:
In general, b denotes the larger fragment and a denotes the smaller fragment.
Note that in fragmentation, there is generally a noticeable difference in the size of the individuals, whereas in fission, two individuals of approximate size are formed.
For example, in the context of fission reactions, if a small piece with an atomic number of 4 is emitted, it would be denoted as a. The remaining fragment, which is usually larger, would be denoted as b.