Nuclear shell model — UPSC CSE 2002 Physics PYQ

(i) Explain why a neutral particle such as neutron possesses a finite value of magnetic moment, and how it is determined. (ii) Write down the electronic configuration of {}^7\text{Li}, \, {}^{13}\text{C} \quad \text{and} \quad {}^{25}\text{Mg} in the ground state of the nuclear shell model.