Danish physicist Niels Henrik David Bohr made foundational contributions to understanding the atomic structure and quantum theory, for which he received the Nobel Prize in Physics in 1922.

In his Nobel Lecture, Bohr also discussed the limitations of his model. Although it was successful in explaining the hydrogen atom, it could not be applied to more complex atoms with more than one ...

Allmendinger, T. (2025) A Planar Atom Model of Helium Based on Well-Defined Electron Trajectories. Journal of Applied ...

A nearly 400 year-old formula for pi has been spotted in a quantum-mechanics formula for the energy states of the hydrogen atom, according to researchers in the US. Derived by English mathematician ...

Bohr’s Model of an Atom: Danish Physicist Niels Bohr received his Ph.D. from the University of Copenhagen in 1911. In 1922, he was awarded the Nobel Prize in Physics for his work on the atom’s ...

The Bohr model seemed to work pretty well for atoms with only one electron. But apart from hydrogen, all other atoms in the periodic table have more, some many more, electrons orbiting their nuclei.

Left: Niels Bohr in 1922. Right: A 1963 Danish stamp honored Bohr on the 50th anniversary of his atomic theory. (Image credit: Left: AB Lagrelius & Westphal, via American Institute of Physics.

Bohr went on to make enormous contributions to physics and, like Rutherford, to train a new generation of physicists. But his atomic model remains the best known work of a very long career.

Niels Bohr's model of the hydrogen atom—first published 100 years ago and commemorated in a special issue of Nature—is simple, elegant, revolutionary, and wrong. Well, "wrong" isn't exactly ...