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The Earth's core contains many radioactive elements within its core that emit warmth as they decay, keeping the core of the Earth hot and heating it from within. Meanwhile, the sun is a product of the nuclear fusion of hydrogen into helium and its rays warm the Earth's crust from outside.

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How is it that radioactive decay has always warmed the earth from the inside and nuclear fusion has always warmed the earth from the outside?

That's because of where each of these processes occur. There is no nuclear fusion inside of Earth. There is probably a small amount of radioactive decay in the Sun, but the power produced by it is insignificant, compared to the huge amount of power produced by nuclear fusion.


Does fusion produce radioactive waste?

No. The products of nuclear fusion are not radioactive.


Does fusion create radioactive waste?

Yes, fusion does not create long-lived radioactive waste like fission does.


Does fusion produce radioactive waste?

Yes, fusion does not produce long-lived radioactive waste like nuclear fission.


Does nuclear fusion create radioactive waste?

Nuclear fusion does not create long-lasting radioactive waste like nuclear fission does. However, some materials used in fusion reactors may become radioactive and need to be handled carefully.


Does nuclear fusion produce radioactive waste?

Yes, nuclear fusion produces some radioactive waste, but it is generally less than what is produced by nuclear fission.


Why is fusion preferred over fission?

Fusion is preferred over fission because it produces more energy with less radioactive waste and is less prone to accidents. Fusion reactions use isotopes of hydrogen, which are abundant and non-radioactive, as fuel. Additionally, fusion does not produce long-lived radioactive waste like fission reactions do.


Is spontaneous fusion a form of radioactive decay?

No, spontaneous fusion is not a form of radioactive decay. Spontaneous fusion occurs when two light atomic nuclei combine to form a heavier nucleus, releasing energy in the process. In contrast, radioactive decay is the process by which an unstable atomic nucleus emits radiation or particles to become more stable.


Is the parent element always radioactive in a nuclear reaction?

No, the parent element in a nuclear reaction is not always radioactive. While many parent isotopes are indeed radioactive and decay into stable or unstable daughter isotopes, there are also stable isotopes that can undergo nuclear reactions without being radioactive themselves. For example, stable isotopes can be involved in nuclear reactions such as neutron capture or fusion, but they do not decay over time like radioactive isotopes.


How do the waste products of a fusion reaction differ from the products of a fission reaction?

Most (but not all) fusion products are non-radioactive. Virtually all fission products are strongly radioactive beta or gamma emitters.


Knowing the half lives of radioactive materials is helpful in?

creating fusion bombs


Why would a fusion reactor produce less radioactive waste than a fission reactor?

In my understanding, this is because a fusion reactor reacts deuterium to produce helium, which is not radioactive, whereas a fission uses uranium or plutonium, for example, which may react to form various radioactive isotopes. A fusion reactor may contain small quantities of tritium, in which case a radioactive isotope of hydrogen may be produced, but given that the majority of reactions occurring involve solely the deuterium, there is less radioactive waste produced.