In Rutherford's nuclear model of the atom, the entire positive charge and most of the…

In Rutherford's nuclear model of the atom, the entire positive charge and most of the mass of the atom are concentrated in the nucleus. The electrons move in orbits around the nucleus. The nucleus is made of protons and neutrons. Because the nucleus is extremely small as compared to the atom, most of an atom is empty space. The protons and the neutrons are held together in the nucleus by very strong nuclear forces.

In the following nuclear reaction
\({ }_{92}^{238} \mathrm{U}+\mathrm{n} \longrightarrow{ }_{\mathrm{X}}^{\mathrm{Y}} \mathrm{Np}+\mathrm{e}^{-}+\overline{\mathrm{v}}+\mathrm{Q} \text {, }\)
the values of X and Y are