Which of the following BEST describes what occurs in a fusion reaction? a.) A chemical reaction occurs between the nuclei. b.) Electrons are shared between the nuclei. c.) A single nucleus divides into two or more nuclei and gives off energy. d.) Two low mass nuclei are joined to form one nucleus and gives off energy.

1 answer

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

d.) Two low mass nuclei are joined to form one nucleus and gives off energy.

In fusion reactions, light nuclei (such as hydrogen isotopes) come together to form a heavier nucleus (such as helium), releasing energy in the process.