CHM120H5 Lecture Notes - Lecture 3: Rydberg Constant, Hydrogen Spectral Series, Balmer Series
Document Summary
Frequency (hz) and wavelength (m) are inversely related. The visible spectra (to humans) has wavelengths of 400-750 nm. Gamma rays, x-ray, ultraviolet, infrared, microwaves, fm short waves, Am long radio waves, fm short waves, microwaves, infrared, ultraviolet, x-ray, gamma rays. International congress on physics 1927 - will know all 29 names by the end of the course. They can"t remain in the outer orbits because the high energy makes them unstable. Colour comes from the wavelength of light emitted each element. Ex: strontium-38 produces red flames, copper-29 produces green flames. This is similar to those seen in flame tests. In fireworks, when electrons return back to their home orbit, they release energy as light. The energy released depends on the orbit from which they fall and to which they return. The light can be visible (balmer series) or invisible (ultraviolet (lyman series) or infrared (paschen series)) depending on the energy released from jumping orbits.
