09.29: The diagram to the right shows the lowe
+lk 2)qq 9 86jg3x( kxwdtjyni9j)fjy st four energy levels for an electron in a hypothetical atom. The electron
jix djy3) wgx lk689nj(f +q9yt2)jqkis 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?