In atomic physics, the Bohr magneton (symbol μB) is named after the physicistNiels Bohr. It is a physical constant of magnetic moment, defined in SI units by Atomic physics (or atom physics) is the field of physics that studies atoms as isolated systems comprised of electrons and an atomic nucleus. ... Articles with similar titles include physician, a person who practices medicine. ... Niels (Henrik David) Bohr (October 7, 1885 – November 18, 1962) was a Danish physicist who made fundamental contributions to understanding atomic structure and quantum mechanics, for which he received the Nobel Prize in 1922. ... In physics, a physical constant is a physical quantity of a value that is generally believed to be both universal in nature and not believed to change in time. ... A bar magnet. ...
and in Gaussian centimeter-gram-second units by CGS is an acronym for centimetre-gram-second. ...
In the SIsystem of units its value is The elementary charge (symbol e or sometimes q) is the electric charge carried by a single proton, or equivalently, the negative of the electric charge carried by a single electron. ... Plancks constant, denoted h, is a physical constant that is used to describe the sizes of quanta. ... e- redirects here. ... The term mass in special relativity is used in a couple of different ways, occasionally leading to a great deal of confusion. ... A line showing the speed of light on a scale model of Earth and the Moon The speed of light in a vacuum is an important physical constant denoted by the letter c for constant or the Latin word celeritas meaning swiftness.[1] It is the speed of all electromagnetic... Look up si, Si, SI in Wiktionary, the free dictionary. ... In physics and metrology, units are standards for measurement of physical quantities that need clear definitions to be useful. ...
The Bohr magneton is the natural unit for expressing the electron magnetic dipole moment. The joule (IPA pronunciation: or ) (symbol: J) is the SI unit of energy. ... SI unit. ... In atomic physics, the magnetic dipole moment of an electron is involved in a variety of important atomic processes and effects. ...
The Bohr magneton was first calculated by Romanian physicist Stefan Procopiu and is also known as the Bohr-Procopiu Magneton.
Before Bohr, the classical model of the atom was similar to the Copernican model of the solar system where, just as planets orbit the Sun, electrically negative electrons moved in orbits about a relatively massive, positively charged nucleus.
Regardless, Bohr's model remains fundamental to the study of chemistry, especially the valence shell concept used to predict an element's reactive properties.
Bohr said, "Anyone who is not shocked by quantum theory has not understood it." Like much of quantum theory, the proofs of how nature works at the atomic level are mathematical.
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