• The de Broglie wave equations allows calculation of the wavelength of any moving object.
  • As the speed of the electron decreases, its wavelength increases.
  • An electron that is confined to a particular space around the nucleus of an atom can only move around that atom in such a way that its electron wave “fits” the size of the atom correctly.
  • This means that the frequencies of electron waves are quantized.
  • Based on the equation, the quantized frequencies means that electrons can only exist in an atom at specific energies.
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