The atomic structure [5]: Heisenberg uncertainty principle

Bohr and Sommerfeld atomic models couldn't be considered exhaustive, because were based on classical mechanics, and introduced postulates, without explaining them. Experimental results weren't properly interpreted as well, and in cases different from Hydrogen, energy levels were completely different from the one proposed by those models.


The problem that was being posed now was if it could be possible to elaborate models that required the existence of precise orbits. To calculate the path of a certain dot, it necessary to know its position and speed at a certain moment.


In response to this problem Heisenberg proposed the uncertainty principle, according to which is not possible to measure accurately and contemporaneously the position and the speed of a certain particle

It means that lower is the radiation's intensity used to observed the particle, grater is the accuracy of the measurement, because the particle's path is going to be effected in a minor way. However to observe the path of an electron, a radiation of wavelength comparable to its dimension is required.  This implies a very small wavelength, that is related to high energy, and therefore great change in particle's speed, that  is several cases, will be sufficient to ionize the atom.