Nuclear Physics (Question 1 (10 Marks)) — UPSC Physics Optional CSE 2018 Paper II

The maximum energy of a positron (e^+) released in the decay of \,{}_{6}^{13}\mathrm{C} atom into a \,{}_{7}^{13}\mathrm{N} atom is 1.202\,\mathrm{MeV}. If the mass of the \,{}_{6}^{13}\mathrm{C} atom is 13.003354\,\mathrm{u}, calculate the mass of the \,{}_{7}^{13}\mathrm{N} atom.