Final answer:
Nuclear reactions such as beta decay, alpha decay, nuclear fusion, and gamma emission each involve different processes and changes within an atom's nucleus. Beta and alpha decay alter atomic numbers and mass numbers, nuclear fusion combines nuclei releasing energy, and gamma emission releases high-energy photons without changing the nucleus's composition.
Step-by-step explanation:
The student is asking about different types of nuclear reactions observed in various decay scenarios. Here's a brief explanation of each:
Each of these processes is an important aspect of understanding nuclear decay and the changes that occur within the nucleus of an atom.