principal quantum number

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principal quantum number [′prin·sə·pəl ′kwän·təm ‚nəm·bər]

(atomic physics)

A quantum number for orbital electrons, which, together with the orbital angular momentum and spin quantum numbers, labels the electron wave function; the energy level and the average distance of an electron from the nucleus depend mainly upon this quantum number.

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No references found			2], where n* is the effective principal quantum number for the upper state. Electron-impact cross sections for ground state to np excitations of ... by Kim, Yong-Ki / Journal of Research of the National Institute of Standards and Technology ] is the experimental effective principal quantum number of quantum defect theory. Electron-impact cross sections for dipole- and spin-allowed ... by Desclaux, J.P. / Journal of Research of the National Institute of Standards and Technology refers to a level of the Lindholm series with principal quantum number 3 that has the A state as its limit and has a vibrational excitation of v in the symmetric stretch mode. Vibrational branching rations and asymmetry parameters in the ... by Dehmer, J.L. / Journal of Research of the National Institute of Standards and Technology			principal elevation principal facade principal façade Principal Focus principal function principal H plane principal homomorphism principal ideal principal ideal ring principal item principal joist principal line principal lobe principal meridian principal mode principal moments principal normal principal normal indicatrix principal normal section principal part principal plane principal plane of stress principal point principal post principal purlin principal quantum number principal radii principal radii of normal curvature principal rafter principal rafter roof principal ray principal roof principal root principal section principal series principal strain principal stress principal submatrix principal type principal value principal vertical circle principal visual ray Principality Principate Principe Príncipe Principle Principle of Abstraction principle of coincidence principle of covariance principle of dichotomy			principal place of business principal place of business Principal Place of Residence principal plane principal plane principal plane principal plane of stress principal plane radiographic beam Principal Planning Agent principal point principal point principal point principal point Principal Point of Contact Principal Polarization principal post Principal Preparation and Certification Program Principal Private Secretary Principal Professional and Technology Officer Principal Project Resident Representative Principal Protected Fund Principal Protected Note Principal Protected Note Principal protected notes Principal Protected Property Note Principal Protection Fund Principal Protection Funds Principal Public Transport Network principal purlin Principal quantium number principal quantum number Principal Race Officer principal radii principal radii of normal curvature Principal rafter principal rafter roof Principal Ratio Combining Principal ray Principal ray Principal Real Estate Investors Australia Principal Regional Development Officer Principal Regional Office for Asia and the Pacific Principal Registry of the Family Division Principal Research Fellow Principal Residence Principal Residences Principal Residential Mortgage, Inc. principal risk Principal Risks principal roof principal root Principal Rural Fire Officer principal scale Principal Scientific Advisor Principal Scientific Officer Principal Sea Transport Officer

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