(Solved): 1. Consider a neutron states in a potential energy well for 12 Te as in figure 1. Use similar conc ...

1. Consider a neutron states in a potential energy well for 12 Te as in figure 1. Use similar concept for 218U and answer the questions below Empty states E- S. 6.6 MeV Filled states ET -43.6 Mev Figure 1 Calculate the: 1.1 neutron separation energy S. of 235U 1.2 volume of the 20% nucleus 1.3 fermi energy Ey 1.4 depth of the well 1.5 binding energy of 235U (4) (3) (2) (3) 2. "K is an unusual isotope, in that it decays by negative beta emission and positive beta emission. Find the values for the decays. (6) 3. A certain sample has a half-life of 5 hours. What is its decay constant? (3) 4. Suppose that 3.0x10' radon atoms are trapped in a basement at the time the basement is sealed against further entry of the gas. The half-life of radon is 3.83 days. How many radon atoms remain after 31 days? 5. Consider the reaction H+un+ Zn 5.1 Balance the equation (Indicate protons, neutrons and nucleons) (1) 5.2 Calculate the Q value for the reaction (3) 5.3 Tritium of energy 15 MeV are incident on a Cu target, and neutrons are observed with kinetic energy of 17.20 MeV. Calculate the Kinetic energy of the Zn. (3)