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By balancing nucleon number (protons and neutrons) and using charge balance (tot

ID: 1638741 • Letter: B

Question

By balancing nucleon number (protons and neutrons) and using charge balance (total final nuclear charge must equal initial nuclear charge, given no beta decays) complete this nuclear fission reaction (fill in the blanks). Be sure to explain your reasoning! Once you figure out the products of the fission, by using mass balance, estimate how much energy is released in the reaction. (Note- you will have to look these masses up on the internet – the idea is energy released = (m(products)-m(reactants))c2 ) 1n + 239Pu -> 134Xe + 103___ + ___ n

Explanation / Answer

1n +239Pu = 134Xe + 103 Zr + 3 n

where Zr= zirconium , and its atomic number is 40