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This question already has an answer here:

For my chemistry project I have found the typical fission reaction which occurs in nuclear power plants is when nuclear fuel rods are bombarded with neutrons, splitting U-235 into isotopes barium and krypton and releasing two more neutrons and massive amounts of heat and energy.

My question is why does bombarding U-235 with neutrons split U-235 into barium and krypton?

Are barium and krypton's nuclei the most stable or does the reaction produce the most energy? My question is what makes the reaction so common in nuclear reactors?

Does the reaction give off the most energy out of all other reactions. Also is the reaction man-made or just a natural nuclear reaction?

Can you also tell me if fuel pellets (U02) are the most efficient type of nuclear fuel or are there more efficient types of nuclear fuel?

Similar question but not same question - Does Uranium-235 always split into Krypton and Barium in nuclear fission?

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marked as duplicate by Brandon Enright, John Rennie, JamalS, Prahar, ACuriousMind Nov 29 '14 at 21:38

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • $\begingroup$ is anybody going to answer? $\endgroup$ – Irrational Person Nov 28 '14 at 18:31
  • $\begingroup$ Be patient, my friend. Your situation ain’t too bad. Some people here have had their questions unanswered for years. $\endgroup$ – Berrick Caleb Fillmore Nov 28 '14 at 18:59
  • $\begingroup$ okay... But that didn't make me feel any better :( $\endgroup$ – Irrational Person Nov 28 '14 at 19:00
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    $\begingroup$ It is nonsense, it doesn't decay into these nuclei. Instead of it, there is a very wide nuclei spectrum, with around a hundred different nuclei, barium and krpyton (more precise: one of their isotopes) are only between them, and I am not even sure they had the biggest proportion. You don't get an answer, because soon your question contains a statement, which isn't true. $\endgroup$ – peterh Nov 28 '14 at 19:03
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    $\begingroup$ possible duplicate of Does Uranium-235 always split into Krypton and Barium in nuclear fission? $\endgroup$ – peterh Nov 28 '14 at 19:06