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Diagram Bohr model Bohr model. Bohr’s model or Bohr-Rutherford is a quantized model of the atom that Bohr proposed in 1913 to explain how electrons can have stable orbits around the nucleus. This planetary model is a functional model that represents the atom (physical object) itself but explains how it works by means of equations. Niels Bohr was based on the hydrogen atom for the model that bears his name. Bohr tried to make an atomic model can explain the stability of matter and the emission and absorption spectra observed in discrete gases. He described the hydrogen atom with one proton in its nucleus, and revolving around an electron. The model was based conceptually Bohr Rutherford model and the emerging ideas that had emerged quantization few years earlier with the investigations of Max Planck and Albert Einstein.Because of its simplicity, the Bohr model is still frequently used as a simplification of the structure of matter. In this model, electrons revolve in circular orbits around the nucleus, occupying the lowest possible energy orbit, or orbit as close as possible to the nucleus. The classical electromagnetism predicted that a charged particle moving in a circular energy emitted as the electrons would collapse into the nucleus in a moment of time. To overcome this problem Bohr assumed that electrons could only move in specific orbits, each of which characterized by its energy level.

Each orbit can then be identified by an integer n that takes values from 1 onward. This number “n” is called the principal quantum number. He assumed further that the angular momentum of each electron was quantized, and only fractions could vary entire Planck’s constant.According to principal quantum number calculated the distance at which each core was one of the allowed orbits in the hydrogen atom. These levels were initially classified by letters, starting at the “K” and ended at the “Q”. Subsequently the electron levels are ordered by numbers. Each orbit has electrons with different energy levels from which later has to release and that is why the electron will jump from one orbit to another until you reach a space that has the appropriate level, depending on the energy it holds and to free no problem and again return to its original orbit. But did not explain the fine structure spectrum could be explained some years later thanks to Sommerfeld atomic model. Historically the development of the Bohr model with wave-particle duality allow Erwin Schr dinger discovered the fundamental equation of quantum mechanics.