Some Properties of Selected Nuclides Mass Binding Energy Nuclide N A Stability" (u) Spin (Me Vucleon) 99.985% 1.007 825 7Li 3 92.5% 7.016 004 5.60 31p 15 16 31 100% 30.973 762 8.48 SAKI 36 48 84 57.0% 83.911 507 8.72 50 70 120 32.4% 119.902 197 8.51 157 Gd 64 93 157 15.7% 156.923 957 8.21 197 Au 79 118 197 100% 196.966 552 7.91 227 Ac 89 138 227 21.8 y 227.027 747 7.65 239Pu 94 145 239 24 100 y 239.052 157 7.56 NOTE: Give your answers in terms of the variables given. For parts (b) to (f) round the result to two significant digits. The tolerance for numeric answers is 7%. (a) Find the mass M of an atom using A, the mass number, and mp, the proton mass. M = Use the mass values given in the table to find the percentage deviation 6 = Mapp - M 100 between Mapp and M for: M (b) 'H 6 = % (c) 31p 6 = % (d) 120Sn 6 = (e) 197 Au d = % (f) 239Pu 6 = % (g) Is a value of Mapp accurate enough to be used in a calculation of a nuclear binding energy? Choose one10:53 X CB VD . Call 33%% 9% education.wiley.com/W 60 . . . Homework #12 11 of 12