If a certain number of neutrons and protons are brought together to form a nucleus, then a fixed amount of energy is associated with it. Which of the following is this process?

Exothermic

The energy is released in the process and is therefore, an exothermic process.

1. In nuclear fusion, two or more, NOT the nucleons, nuclei fuse together to form one daughter nucleus.
2. In nuclear fission, one nucleus disintegrates to form two or more daughter nuclei, NOT the nucleons.