can someone please explain how to solve these problems,

18. A U nucleus emits an o particle with kinetic = 4.20 Me V. What is the daughter nucleus? 36Kr (c) 90 1 (d) Ba (e) 48Cd 19. Continuing with the previous question, what is the atomic mass of the daughter atom? (a) 232.043676 u (b) 92.043676 u (c) 222.043676 u (d) 141.043676 u (e) 234.043676 u 20. What is the maximum kinetic energy of the beta particle emitted during the decay of 1%K (the daughter nucleus experiences negligible recoil)? (a) 2.82 Me V (b) 4.79 Me V (c) 9.23 Me V (d) 1.31 Me V (e) 5.67 Me V 21. How much energy is released when a beryllium nucleus captures an electron: "Be+ e -+ ;Li + v ? For this exercise, consider the nuclear masses, not the atomic masses. (a) 3.39 Me V (b) 7.21 MeV (c) 0.86 MeV (d) 247 ke V (e) 1.37 MeV 65 22. What is the maximum kinetic energy of particles released when F decays to 180? This decay reaction is commonly used in positron emission tomography (PET) scanners. The atomic mass of F is 18.000938 u. The decay reaction is: ";F - 30 tet + v. (a) 0.634 MeV (b) 1.23 MeV (c) 24.5 ke V (d) 0.813 MeV (e) 3.37 MeV