[填空题]
The diagram shows six energy levels of hydrogen.
1.Describe how an emission spectrum is an evidence of discrete energy levels in an atom.
2.(1)On the energy level diagram, draw an arrow to represent the transition that emits the shortest wavelength.
(2)Calculate the shortest emitted wavelength. λ = m $\times10^{-8}$
3.Emitted red light has a frequency estimation of 460 THz. Determine which energy level transition emits this red light. E = eV
