Which change to an atom occurs during a nuclear fission reaction?(1 point)

Responses

Both the atomic number and the mass number must change.
Both the atomic number and the mass number must change.

The atomic number cannot change, but the mass number must change.
The atomic number cannot change, but the mass number must change.

Neither the atomic number nor the mass number can change.
Neither the atomic number nor the mass number can change.

The atomic number must change, but the mass number cannot.

1 answer

In a nuclear fission reaction, the nucleus of an atom splits into two or more smaller nuclei, along with the release of energy. This process typically involves heavy elements such as uranium or plutonium, and during fission, new elements (or isotopes) are formed, which means both the atomic number and the mass number change.

Therefore, the correct response is:

Both the atomic number and the mass number must change.