abhinavkumar_iitr05 - The math is getting more complex - beyond me. <br /><br />I can at least post why it is beyond me (so far):<br /><br />Obviously, the location of the electrons will govern the location of magnetic field lines. For a simple hydrogen atom with one electron - not so hard.<br /><br />But with 10, 20, or higher individual electron magnetic fields interacting with 10, 20, or higher proton magnetic fields, plus influence of neutrons (they are made up of quarks with spin whose charges cancel out overall, but....) you can see the math would get really complex!<br /><br />Of course, one can simplify by assuming a nucleus has a simple net spin and charge and magnetic field - but it is likely far more complex than that.<br /><br />It involves superfine structure. <br /><br />"The electron is not unique in possessing spin; the protons and neutrons in the nucleus also each have a spin of 1/2. This means that the nucleus itself can have a net spin angular momentum, depending on how the individual contributions from the protons and neutrons add together. The effect of the quantization of nuclear spin can be detected in atomic spectra as hyperfine structure, or spittling on scales a thousand times smaller than the fine structure splitting due to the electron's spin." - "The World of Science," by Andromeda Oxford Ltd., 1991, Volume 13, p. 93.<br /><br />Obviously, electron location, and therefore heisenberg's uncertainty principle, would involve both fine structure and superfine structure caused by spin angular momentum of all the collective particle-waves in the specific atom studied.<br /><br />This is in addition to the uncertainty due to wave function due to particle wave duality. <br /><br />Please note that I have gone way beyond Heisenberg's uncertainty principle as first promulgated by Heisenberg (compare Schrodinger's theory which leads to the same math result). <br /><br />As the first link noted, the Heisenberg uncertainly principle is simply caused by the means o