Step-by-step explanation:
A nuclear reaction is defined as a reaction in which two nuclei combine together to result in the formation of a new nuclei.
When two nuclei combine together then it is known as nuclear fusion. And, when a large nuclei split into two small nuclei then it is known as a nuclear fission reaction.
For example,
![^(31)P + ^(1)_(0)n \rightarrow ^(27)_(13)Al + ^(4)_(2)He + ^(1)_(0)e](https://img.qammunity.org/2019/formulas/chemistry/college/ealf2cnah6ctvxm1t2bnscs9b6cfdbm6u4.png)
As we know that alpha particle is
.
So, when
is subjected to neutron capture followed by alpha emission then products are
along with emission of a positron.