Fission Reactions Part A 235 92 In a nuclear fission reaction a heavy nucleus di

Question

Fission Reactions Part A 235 92 In a nuclear fission reaction a heavy nucleus divides to form smaller nuclei and one or more neutrons. Many nuclei can undergo fission, but the fission reactions of uranium-235 and plutonium-239 are the principal ones that generate energy in nuclear power plants. This problem deals with balancing the fission reaction of the uranium-235 isotope as it undergoes bombardment from a neutron. Whena nucleus is bombarded by neutrons (n) it undergoes a fission reaction, resulting in the formation of two new nuclei and neutrons. The following equation is an example of one such fission proceSS: 235 92 94 36 Enter the isotope symbol for the barium (Ba) nucleus in this reaction. Express your answer as an isotope xxb Submit Hints My Answers Give Up Review Part

Explanation / Answer

part A )

92U235 +0 n1 ------------------ > 56Ba139 + 36 Kr 94 + 3 0n1

part B)

92U235 +0 n1 ------------------ > 38Sr90 + 54 Xe 143 + 3 0n1

explanation :

while doing this type of probelms . just follow law of conservation of mass

reactant masses = product masses

that means atomic numbers sum are equal in both sides

and

mass numbers sum are equal in both sides

for part A)

example : 92 + 0 = 56+ 36 +0

               235 + 1 = 139 + 94 + 3 x 1

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