BohrC

1. 1885-1962,born in Copenhagen, Denmark, "The Rutherford–Bohr model of the hydrogen atom (//Z// = 1) or a hydrogen-like ion (//Z// > 1), where the negatively charged electron confined to an atomic shell encircles a small, positively charged atomic nucleus and where an electron jump between orbits is accompanied by an emitted or absorbed amount of electromagnetic energy (//hν//).[1] The orbits in which the electron may travel are shown as grey circles; their radius increases as //n//2, where //n// is the principal quantum number”   

2. worked on Manhattan Project where he assumed the name of Nicholas Baker, worked in laboratories of JJ Thompson and Professor Rutherford, became a professor in 1916 at the University of Copenhagen, founded the institute of theoretical physics in 1921, in 1922 he was awarded the nobel prize in physics, in 1913 he succeeded in working out and presenting a picture of the nucleus with the electrons traveling in orbit, he formed the liquid droplet theory which states that a liquid drop would give a very good picture of a nucleus, this was an improvement on the earlier cubic model, it was better than the earlier one because it was quantum physics-based modification of the Rutherford model, this model is structure in the form of the solar system in which the nucleus would be equal to the sun and the electrons would be equal to the planets

3. the bohr model fails to explain the fine structure and hyperfine structure and spectral lines, it violates the uncertainty principle because it considers electrons to have known orbits in a definite radius-two things that cannot be known at once, it also gives an incorrect value for the ground state orbital angular momentum

[|http://en.wikipedia][|.org/wiki/Niels_Bohr] [] [] [|http://www.rsc.org/chemsoc/timeline//pages/1913.html] []