QUANTUMNUMBER

Quantum number

Quantum numbers describe values of conserved quantities in the dynamics of a quantum system. Perhaps the most peculiar aspect of quantum mechanics is the quantization of observable quantities, since quantum numbers are discrete sets of integers or half-integers. This is distinguished from classical mechanics where the values can range continuously. Quantum numbers often describe specifically the energies of electrons in atoms, but other possibilities include angular momentum, spin, etc. Any quantum system can have one or more quantum numbers; it is thus difficult to list all possible quantum numbers.

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quantum number

Noun

  1. One of certain integers or half-integers that specify the state of a quantum mechanical system (such as an electron in an atom).


The above text is a snippet from Wiktionary: quantum number
and as such is available under the Creative Commons Attribution/Share-Alike License.

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