I am currently studying wave-particle duality. However, at the moment I do not see how the Bohr Model is connected to this topic. I know that the Bohr Model failed to recognise various aspects of the atom and that it works only for single atoms e.g. Hydrogen, but what did it fail to do when it comes to wave-particle duality. In addition to this, when does an electron act like a wave and does the Compton effect and the Photoelectric effect help to explain this. Thanks for your time and your help!