Which process joins atoms together?

Which process joins atoms together?

• A. Fusion
• B. Ionization
• C. Decomposition
• D. Synthesis

Answer: (A)

Joining atoms together in this sense means fusing atomic nuclei. Fusion is the process where two light nuclei combine to form a heavier nucleus, releasing energy in the process. This is the mechanism stars use to produce energy. Ionization is about removing electrons, not joining nuclei. Decomposition breaks a substance into simpler parts. Synthesis in chemistry describes forming a compound by bonding atoms, which is a chemical connection rather than fusing nuclei. So, fusion is the correct concept because it literally fuses nuclei to create a new, heavier nucleus.

Joining atoms together in this sense means fusing atomic nuclei. Fusion is the process where two light nuclei combine to form a heavier nucleus, releasing energy in the process. This is the mechanism stars use to produce energy. Ionization is about removing electrons, not joining nuclei. Decomposition breaks a substance into simpler parts. Synthesis in chemistry describes forming a compound by bonding atoms, which is a chemical connection rather than fusing nuclei. So, fusion is the correct concept because it literally fuses nuclei to create a new, heavier nucleus.