Quantum mechanics describes the unconventional properties of subatomic particles, like their ability to exist in a ...

Hollow atoms are special atoms with multiple missing electrons in their inner shells, while their outer shells are still ...

Just 100 years ago, on 9 July 1925, Werner Heisenberg wrote a letter to his friend, colleague and fiercest critic, Wolfgang ...

Syllabus: The NTA has put the official JEE Main 2026 Syllabus online on their website: jeemain.nta.nic.in. If you're planning ...

Bohr applied it to the spectrum of light emitted and absorbed by hydrogen atoms. The basic hydrogen atom is the simplest of all atoms, now known to consist of a single proton and a single electron.

His particular bone of contention was the Bohr–Sommerfeld model of the atom, named after the two physicists, Niels Bohr and Arnold Sommerfeld, who developed it in the 1910s.

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 ...

Kragh, H. (2012) Niels Bohr and the Quantum Atom The Bohr Model of Atomic Structure 1913-1925. Oxford University Press.