09.29: The diagram to the right
6 3p; .aif(/cy1v/dcjy rujek shows the lowest four energy levels for an electron in a hypothetical atom. The el
. ;f ykji p3/6(/er yvua1cjcdectron is excited to the -1 eV level of the atom and transitions to the lowest energy state by emitting only two photons. Which of the following energies could not belong to either of the photons?