According to de Broglie's speculation, subject particles like the electron behave as waves. The de Broglie wavelength of the electron is The relative intensities of spectral traces; While in a few uncomplicated circumstances, Bohr's method or modifications of it, was ready to offer sensible estimates (one example is, calculations by https://ideadigest.de/die-rolle-von-bohrmaschinen-in-der-modernen-fertigung/