Splitting up of a nucleus of an atom into two fragments with the release of huge amount of energy is called nuclear_____

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question states that we need to identify the term that describes the process of splitting a nucleus of an atom into two fragments while releasing a large amount of energy.

2. **Identifying Nuclear Processes**: There are two main types of nuclear reactions: nuclear fission and nuclear fusion.
- **Nuclear Fission**: This is the process where a large nucleus splits into two smaller nuclei, along with the release of energy.
- **Nuclear Fusion**: This is the process where two small nuclei combine to form a larger nucleus, also releasing energy.

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