Ask the Chatbot Games & Quizzes History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture ProCon Money Videos
Bohr model
Introduction & Top Questions References & Edit History Quick Facts & Related Topics
Images & Videos
Diagram of the Bohr atomic model for a nitrogen atom, showing a central nucleus with protons and neutrons, surrounded by two rings of orbiting electrons. Labels identify protons, neutrons, electrons, and electron orbits.
Niels Bohr's contribution to atomic theory explained
Diagram of the Bohr atomic model showing an electron moving in circular orbits with quantized energy levels around a central nucleus, alongside an energy level diagram illustrating electron transitions. Bohr model of a fluorine atom showing a central cluster of red and yellow spheres for protons and neutrons, with blue electrons orbiting in two rings. Diagram comparing the hydrogen atom's energy levels using Bohr's model, the Schrodinger equation, and the Dirac equation, with horizontal lines representing quantized binding energies and labels for each energy state.
Quizzes
Encyclopaedia Britannica thistle graphic to be used with a Mendel/Consumer quiz in place of a photograph.
Matter and More Quiz
Related Questions

Bohr model: References & Edit History

Article Contributors

Primary Contributors

  • The Editors of Encyclopaedia Britannica
    Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.

Other Encyclopedia Britannica Contributors

Article History

Type Description Contributor Date
Deleted Web site: Chemistry LibreTexts - The Bohr Model. Oct 16, 2026
Add new Web site: Chemistry LibreTexts - The Bohr Model. Sep 04, 2026
Add new Web site: University of Wisconsin Pressbooks - Chemistry - The Bohr Model. Feb 16, 2026
Added a Top Questions section. Sep 04, 2025
Add new Web site: UEN Digital Press with Pressbooks - Introductory Chemistry - Bohr’s Theory. Jul 19, 2025
Add new Web site: Al-Mustansiriya University - Bohr's model of hydrogen (PDF). Apr 12, 2025
Add new Web site: Embry‑Riddle Aeronautical University - Department of Physics and Astronomy College of Arts and Sciences - The Bohr Atom. Aug 20, 2024
Add new Web site: UEN Digital Press with Pressbooks - Introductory Chemistry - Bohr?s Theory. Mar 05, 2024
Add new Web site: Space.com - The Bohr model: The famous but flawed depiction of an atom. Jan 08, 2024
Add new Web site: OpenStax - Chemistry 2e - The Bohr Model. Oct 16, 2023
Add new Web site: University of Rochester - Department of Physics and Astronomy - The Bohr Model. Aug 10, 2023
Added cross-references. Apr 06, 2023
Add new Web site: PNAS - Bohr's 1913 molecular model revisited. Dec 30, 2022
Media added. Jan 23, 2020
Changed article title from "Bohr atomic model" to "Bohr model." Mar 28, 2019
Add new Web site: University of Rochester - Department of Physics and Astronomy - The Bohr Model. Dec 28, 2018
Add new Web site: ThoughtCo. - Bohr Model of the Atom. May 04, 2018
Add new Web site: Kahn Academy - The Bohr model. Apr 20, 2018
Add new Web site: Chemistry LibreTexts - The Bohr Model. Apr 06, 2018
Add new Web site: Indiana University Northwest - Bohr Atom. Feb 28, 2018
Corrected display issue. Dec 13, 2017
Picture of the Bohr atomic model of a nitrogen atom added. Apr 19, 2011
Added new Web site: ThinkQuest - Atomic Spectra and the Bohr's Theory. Jun 12, 2007
Added new Web site: Indiana University Northwest - Bohr Atom. Jun 12, 2007
Added new Web site: John Venablesz - The Bohr Atom. Jun 12, 2007
Article revised. May 04, 1999
Article added to new online database. Jul 20, 1998
View Changes:
Article History
Revised:
By: