principal quantum number

(redirected from Radial quantum number)
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Related to Radial quantum number: Principal quantum number

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.
References in periodicals archive ?
This feature is common to all further amplitude functions in spherical polar coordinates in which radial quantum number k increases by one unit between two instances; when k increases by two units, the distinction amounts to two further inner spheres or their parts or two further radial or spherical nodal surfaces.
Parameters that appear in the solution but not the partial-differential equation take discrete variables, imposed by boundary conditions, as follows: radial quantum number k and azimuthal quantum number l appear in generalized Laguerre function R(r) in exactly the same form as in spherical polar coordinates because, after the separation of variables, the ordinarydifferential equation that governs R(r) is exactly the same in both spherical polar and spheroconical coordinates.