Which of the following is true?
1) More than one element can have the same emission or absorption spectrum
2) The wavelengths of the emission lines produced by an element are different from the wavelengths of the absorption lines produced by the same element
3) An absorption spectrum appears as a continuous spectrum interrupted by a series of dark lines
4) An electron can have any energy within an atom, so long as that energy is above the ground state energy
5) Ultraviolet light has the shortest wavelength of any electromagnetic radiation