Bohr model
Synonyms
Examples
Although the Bohr model has been supplanted by other models, its underlying principles remain valid.
Although the Bohr model of the hydrogen atom could be explained in this way, the spectrum of the helium atom (classically an unsolvable 3-body problem ) could not be predicted.
At higher-order perturbations, however, the Bohr model and quantum mechanics differ, and measurements of the Stark effect under high field strengths helped confirm the correctness of quantum mechanics over the Bohr model.
Electron energy levels Models depicting electron energy levels in hydrogen, helium, lithium, and neon The Bohr model gives almost exact results only for a system where two charged points orbit each other at speeds much less than that of light.
Henry Moseley helped develop the concept of atomic number by showing experimentally (1913) that Van den Broek's 1911 hypothesis combined with the Bohr model nearly correctly predicted atomic X-ray emissions.
In 1913, Niels Bohr incorporated this idea into his Bohr model of the atom, in which an electron could only orbit the nucleus in particular circular orbits with fixed angular momentum and energy, its distance from the nucleus (i.