Question 12

Question

Which of the following BEST describes what occurs in a fusion reaction?

a
A single nucleus divides into two or more nuclei and gives off energy.
b
A chemical reaction occurs between the nuclei.
c
Two low mass nuclei are joined to form one nucleus and gives off energy.

d
Electrons are shared between the nuclei

Answer 1

The option that BEST describes what occurs in a fusion reaction is:

c: Two low mass nuclei are joined to form one nucleus and gives off energy.

Fusion reactions, such as those that occur in stars including the sun, involve the combination of light nuclei (like hydrogen isotopes) to form a heavier nucleus, releasing energy in the process.