How many new elements (fission fragments, or daughter nuclei) are typically presented as a result of fission?

1

3

2

5

The correct option is 2.

Nuclear fission refer to a nuclear reaction in which the nucleus of a single radioactive element is split into two different smaller nuclei, which are different from the parent element accompany with the release of energy. Nuclear fission is typically used to produce energy. The two smaller nuclei are called fission products.