atomic orbital

(redirected from Atomic shell)

atomic orbital

[ə′täm·ik ′ȯr·bə·təl]
(atomic physics)
The space-dependent part of a wave function describing an electron in an atom.
References in periodicals archive ?
According to this model, the atom distribution of electrons in its atomic shell described quantized wave [[psi].sub.n]-functions are spatially standing waves [4].
The [lambda](k), [f.sub.i] (k), and [[delta].sub.i](k) can be derived from the standard 2:17R (corresponding to Crystal Information File (CIF): 420005 in Inorganic Crystal Structure Database (ICSD)) and 1:7H (ICSD CIF: 102668) structures by FEFF [19], in which Sm is set as the center atom and [S.sup.2.sub.0] and [[sigma].sup.2] are fixed as 1 and 0.003, respectively, and N and R of atomic shells with a distance of less than 6 [Angstrom] from Sm are defaulted to the values calculated from the fractional coordinates of Sm and Co in standard 2:17R and 1:7H unit cells (recorded in their CIFs).
The low beam energy restricts the energy of the atomic shells that can be excited, forcing the analyst to choose unfamiliar shells/characteristic peaks.

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