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Question
Differentiate between nuclear fission and nuclear fusion.
Solution 1
| Nuclear fission | Nuclear fusion | |
| Definition | Fission is the splitting of the heavy nucleus of a radioactive atom into smaller nuclei. | Fusion is the fusing of two or more lighter nuclei into a heavy nucleus. |
| Natural occurrence of the process | The process of nuclear fission does not normally occur in nature. | Fusion occurs in stars, such as the sun. |
| Energy released | The energy released by fission is a million times greater than that released in chemical reactions but is lower than the energy released by nuclear fusion. | The energy released by fusion is three to four times greater than the energy released by fission. |
Solution 2
| Nuclear fission | Nuclear fusion | |
| 1. | When a heavy nucleus is agitated, it splits into two smaller nuclei with comparable masses. | Two lighter nuclei fuse together to create a heavier nucleus. |
| 2. | This phenomenon does not require high temperatures or pressures to occur. | This phenomenon requires tremendous pressure and temperature conditions to occur. |
| 3. | Neutrons are the link particles. | Protons are the link particles. |
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