when did niels bohr discovered atomic structure?

Answer 1

In atomic physics, the Bohr model depicts the atom as a small, positively charged nucleus surrounded by waves of electrons in orbit — similar in structure to the solar system, but with electrostatic forces providing attraction, rather than gravity, and with waves spread over entire orbit instead of localized planets.

Introduced by Niels Bohr in 1913, the model's key success was in explaining the Rydberg formula for the spectral emission lines of atomic hydrogen; while the Rydberg formula had been known experimentally, it did not gain a theoretical underpinning until the Bohr model was introduced.

The Bohr model is a primitive model of the hydrogen atom that cannot explain the fine structure of the hydrogen atom nor any of the heavier atoms. As a theory, it can be derived as a first-order approximation of the hydrogen atom in the broader and much more accurate quantum mechanics, and thus may be considered to be an obsolete scientific theory. However, because of its simplicity, the Bohr model is still commonly taught to introduce students to quantum mechanics.

Answer 2

"On the basis of Rutherford's theories, Bohr published his model of atomic structure in 1913, introducing the theory of electrons traveling in orbits around the atom's nucleus, the chemical properties of the element being largely determined by the number of electrons in the outer orbits. Bohr also introduced the idea that an electron could drop from a higher-energy orbit to a lower one, emitting a photon (light quantum) of discrete energy. This became a basis for quantum theory."

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"In 1913 Bohr published a theory about the structure of the atom based on an earlier theory of Rutherford's."

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" The frequency of the radiation so emitted would be equal to the difference in energy between those states divided by Planck's constant. This meant that the atom could neither absorb nor emit radiation continuously but only in finite steps or quantum jumps. It also meant that the various frequencies of the radiation emitted by an atom were not equal to the frequencies with which the electrons moved within the atom, a bold idea that some of Bohr's contemporaries found particularly difficult to accept. The consequences of Bohr's theory, however, were confirmed by new spectroscopic measurements and other experiments.

Bohr returned to Copenhagen from Manchester during the summer of 1912, married Margrethe Nørlund, and continued to develop his new approach to the physics of the atom.

The work was completed in 1913 in Copenhagen but was first published in England."

Answer 3

In 1914, a Danish phycist Niels Bohr...

Answer 4

Bohr formulated in 1913 an alternative atomic model, in which only certain circular orbits of the electrons are allowed.

Answer 5

Recognition of his work on the structure of atoms came with the award of the Nobel Prize for 1922.

Answer 6

1913 - "Bohr published his model of atomic structure in 1913, introducing the theory of electrons traveling in orbits around the atom's nucleus"

Answer 7

1913

Answer 8

It wasn't bohr, it was a man named nagaoka which i uncovered while reading the presidential archives.

Answer 9

He is to die tomorrow.

What is Bohr Atomic Model???

Answer 10

In the early twentith century.