E A plot of binding energy per nucleon (Tb) versus the mass number (A) shows that nuclei with a small mass number have a small binding energy per nucleon, as the mass number increases the binding energy per nucleon increases, and the value for the binding energy per nucleon has a maximum value for nuclei with a mass number around 60. Verify that this is the case by determining the binding energy per nucleon for each of the following four nuclei. (Let the mass of a proton be 1.0078 u, the mass of a neutron be 1.0087 u, the mass of 6He be 6.0189 u, the mass of 7Li be 7.0160 u, the mass of 61Ni be 60.9311 u, and the mass of 110Cd be 109.9030 u. Enter your answers in MeV and to at least three signicant figures.) (a) 6He 0.118 x Review the meaning of the A, Z and N numbers. Review how to nd the binding energy of a nucleus and then the binding energy per nucleon. MeV (b) 7Li 5.62 y MeV (c) 61Ni 8.80 x Modify your work from part (a) to determine the binding energy per nucleon for the nucleus of interest. MeV (d) 11oCd 25.64 x Modify your work from part (a) to determine the binding energy per nucleon for the nucleus of interest. MeV (a) Write the complete reaction equation for electron capture by C. (Enter your answer in the form "XN.) Z chemPad Help XOXO Greek Cter - llB + X-ray X ^11 6C+10_-1e^- ->^11_5B + x-ray An atomic number is missing from your answer or could not be identified. (b) Calculate the energy released in MeV. (Assume 1 u = 931.5 MeV/c2.) 1.983 MeV