Bohr Magneton

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Bohr magneton

[′bȯr ′mag·nə‚tän]
(atomic physics)
The amount he /4π mc of magnetic moment, where h is Planck's constant, e and m are the charge and mass of the electron, and c is the speed of light.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Bohr Magneton


a unit of elementary magnetic moment equal to the intrinsic (spin) magnetic moment of an electron. It is named for N. Bohr. The Bohr magneton μB = (9.274096 ± 0.000065) x 10-24 joules per tesla = (9.274096 ± 0.000065) x 10-21 ergs per gauss. [3–1673–1; updated]

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.