Question

5
select the correct answer.
which statement about nuclear fusion is correct?
a. two hydrogen electrons become protons during fusion.
b. helium nuclei can fuse to form elements such as nitrogen.
c. the fusion reaction lasts for several hundred years.
d. large nuclei break apart to form smaller nuclei.

Explanation:

• Option A: In nuclear fusion, it is nuclei that interact, not electrons becoming protons.
• Option B: Helium nuclei can fuse to form heavier elements like nitrogen. For example, in stars, such fusion processes occur.
• Option C: Nuclear fusion reactions (like in the sun) don't last several hundred years in the way described. The sun's fusion is a continuous process but not in the sense of a single - reaction lasting that long.
• Option D: This describes nuclear fission (where large nuclei break apart), not fusion.

Answer:

B. Helium nuclei can fuse to form elements such as nitrogen.