Question

the process of splitting an atom into two lighter atoms is called nuclear
a) fission.

b) separation.

c) disintegration.

d) fusion.

Explanation:

To solve this, we recall nuclear processes: Nuclear fission is the splitting of a heavy atom into two lighter atoms. Nuclear fusion is combining light atoms into a heavier one. Separation and disintegration are not specific nuclear process terms for this. So the correct term for splitting an atom into two lighter atoms is fission.

Answer:

A) fission.