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Bohr atom

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noun Physics.
  1. See under Bohr theory.
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Origin of Bohr atom

First recorded in 1920–25; after N. Bohr
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

bohr atom in Culture

Bohr atom

[(bawr)]

The simplest modern picture of the structure of the atom, according to which electrons move in orbits around the nucleus. The electron's orbits can exist only at certain well-defined distances from the nucleus. When an electron changes orbits, it does so in a sudden quantum leap. The energy difference between the initial and final orbit is emitted by the atom in bundles of electromagnetic radiation called photons.

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Note

The Bohr atom is named after the twentieth-century Danish physicist Niels Bohr.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.