. (i) (ii) (iv) In the shell model, 160 (Z = 8) is a 'doubly' magic nuclide and, being an even-even nucleus, has a spin and parity 1π = 0+. What are the predicted 1 values for 150 and 170? For odd-odd nuclei, a range of 1 are allowed according to the shell model. What are the allowed values for 18F (Z = 9)? For even-even nuclei (e.g., 180) 1π is always 0+. How is this observation explained? The ground state of 28 AI (Z = 13) has nuclear spin 3 and positive parity. Using the shell model, justify that this is a possible spin/parity assignment for the ground state.

. (i) (ii) (iv) In the shell model, 160 (Z = 8) is a 'doubly' magic nuclide and, being an even-even nucleus, has a spin and parity 1π = 0+. What are the predicted 1 values for 150 and 170? For odd-odd nuclei, a range of 1 are allowed according to the shell model. What are the allowed values for 18F (Z = 9)? For even-even nuclei (e.g., 180) 1π is always 0+. How is this observation explained? The ground state of 28 AI (Z = 13) has nuclear spin 3 and positive parity. Using the shell model, justify that this is a possible spin/parity assignment for the ground state.