Given the de Broile wave matter equation, wavelength = plank's constant / momentum,... 1) what's the maximum distance from the electron until its wave like behaviour stops interfering with its surroundings? 2) why the bigger the wavelength, the more the electron is to interact with its surroundings? 3) why is the picture of the wave like behaviour always drawn as a wave (of probability) of only 1 cycle (its wavelength)? 4) why does it work to explain quantised levels in an atom? I know it's due to constructive interference, where the orbit circumference is equal to N*wavelength. But what does this imply? The wave like behavior/probability travels through space?