How are nuclear fission and nuclear fusion are the same?

Answer 1

They are similar only in that they are nuclear reactions. In nuclear fission involves the splitting of an atomic nucleus, whereas nuclear fusion involves the joining together of atomic nuclei.

Answer 2

Nuclear fission and nuclear fusion are similar in that they both involve changes in the nucleus of the atom. Another similarity is that relatively high energies (for the size of the matter involved) are associated with those nuclear changes.

In general, nuclear fission is the "splitting" of the nucleus of an atom, and nuclear fusion is the fusing or combining of two smaller atomic nuclei to form a larger one. Both nuclear fission and nuclear fusion are described in related questions, which are linked below.

It should be noted that fission results in the release of energy. Fusion, however, can result in the release of energy, or it could require energy to occur. Fusing lighter atomic nuclei to form heavier ones releases energy up to the formation of an iron nucleus. Heavier nuclei beyond iron require energy to be put into the fusion event for it to occur.
Both reactions involve the nucleus of an atom, and in both reactions, lots and lots of excess nuclear binding energy is released. Other than that, the two reactions are pretty much opposite. Fission involves the splitting of an atomic nucleus. Fusion involves the fusing of two or more smaller units to create a new, heavier nucleus.

Links are provided to articles on both subjects that have been posted by our friends at Wikipedia, where knowledge is free.

The similarity between nuclear fission and nuclear fuision is that they both produce huge amount of energy. These could be used to generate electricity, but scientists find it difficult to produce nuclear fusion reactions under conditions that can be safely managed as the temperatures are extremely high (around 150 million degrees Celcius). Fusion is the reaction that occurs in the sun while fission is a process that can be induced and is the splitting of a uranium (or other fissionable) atom into other lighter elements. Fission also releases a lot of usable energy.

Answer 3

fission is the splitting of an atom while fusion is the combination of atoms they do both produce high amounts of energy

Answer 4

They are the same in that energy is produced due to mass defect or mass difference between the reaction products and the input product