Question

which best describes what forms in nuclear fusion?
○ two smaller, more stable nuclei
○ two larger, less stable nuclei
○ one smaller, less stable nucleus
○ one larger, more stable nucleus

Explanation:

Nuclear fusion is the process where two or more atomic nuclei combine to form a single, larger nucleus. During this process, the resulting nucleus is more stable (as fusion releases energy when forming more stable nuclei, like in the sun where hydrogen fuses into helium). Let's analyze each option:

• "two smaller, more stable nuclei": Fusion combines nuclei, so it doesn't form two smaller ones. Eliminate.
• "two larger, less stable nuclei": Fusion forms one nucleus, not two, and the result is more stable. Eliminate.
• "one smaller, less stable nucleus": Fusion combines to make a larger nucleus, and it's more stable. Eliminate.
• "one larger, more stable nucleus": Matches the definition of fusion (combining small nuclei into a larger, more stable one).

Answer:

D. one larger, more stable nucleus (assuming the options are labeled A - D in order, with the last option being D)