Question

Which describes nuclear fusion?

The nuclei of two atoms combine to form a larger nucleus.

The nucleus of one atom splits to form two smaller nuclei.

The electrons of two atoms combine to form a cluster of electrons.

The electrons of one atom separate to form electron particles.

Answer 1

The first one, when two nuclei combine.

Answer 2

The correct choice is

The nuclei of two atoms combine to form a larger nucleus.

Step-by-step explanation:

Nuclear fusion is defined as the process in which the nucleus of two smaller atoms combine together to form a larger nucleus and in the process of combining the two smaller nuclei, large amount of energy is released. An example of such a process is fusion reaction taking place inside sun and stars.