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?