In atomic physics, the Bohr model or Rutherford–Bohr model, presented by Niels Bohr and Ernest Rutherford in 1913, is a system consisting of a small, dense nucleus surrounded by orbiting electrons—similar to the structure of the Solar System, but. In atomic physics, the Bohr model or Rutherford–Bohr model, presented by Niels Bohr and Ernest Rutherford in 1913, is a system consisting of a small, dense. Bohr model, description of the structure of atoms proposed in 1913 by the Danish physicist Niels Bohr. In 1913 Bohr proposed his quantized shell model of the atom to explain how electrons can. In 1913 Bohr proposed his quantized shell model of the atom to explain how electrons can have stable orbits around the nucleus. In atomic physics, the Bohr model depicts an atom as a small, positively charged nucleus surrounded by electrons.