09.29: The diagram to the right shows the lowest fou
xpld .48xn d6c8kj*exr energy levels for an electron in a hypothetical atom. The electron is excited to the -1 e
dx *6 p8 n4xck8e.djxlV 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?