The energy levels of a hypothetical stationary atom are shown in the diagram, with the ground state at \(E_1 = -12.0\text{ eV}\) and excited states at \(E_2 = -5.0\text{ eV}\), \(E_3 = -2.0\text{ eV}\), and \(E_4 = -0.5\text{ eV}\). A beam of free electrons, each having a kinetic energy of \(10.5\text{ eV}\), bombards a sample of these atoms initially in their ground state. Which of the following correctly identifies all possible kinetic energies of the scattered electrons and all possible photon energies emitted by the atoms as they de-excite?