09.29: The diagram to the right shows the lowest
705i 8h* rjcu(ivcmnu four energy levels for an electron in a hypothetical atom. The electron is excited to the -1 eV level of the atom and transitions to the lowest energy state by emitting onl
*5iiucc h8um (j7 r0nvy two photons. Which of the following energies could not belong to either of the photons?