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Studies on Atomic Spectroscopic Terms and Term Symbols of Non-equivalent Electrons of d2s1p1 Configuration Using Russell- Saunders Coupling Scheme

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Author Affiliations

  • 1Department of Chemistry, M.L.S. University, Udaipur, Rajasthan-313001, INDIA
  • 2Department of Chemistry, M.L.V. Govt. College, Bhilwara, Rajasthan-311001, INDIA

Res.J.chem.sci., Volume 3, Issue (4), Pages 19-24, April,18 (2013)

Abstract

Russell-Saunders (R-S) coupling scheme is an important coupling scheme to determine the terms and to assign the term symbols to the terms to the valence electrons of free atoms. The atomic term symbols provide the information about the energy of atomic valence electrons, total spin, total orbital angular momentum, total angular momentum, spectral and magnetic properties of atom. In this proposed work computation is done to determine all the possible terms for the non-equivalent valence electrons of d2s1p1 configuration manually and the term symbols are assigned to the terms using Russell-Saunders coupling scheme. The possible microstates calculated for the non-equivalent electrons of d2s1p1 configuration are 540 and the total numbers of atomic spectroscopic terms determined from these microstates are 38 (17 types), 6 are quintets (5 types), 17 are triplets (6 types) and 13 are singlet′s (6 types). The ground state term for the non-equivalent electrons of d2s1p1 configuration is quintet G (5G) and the ground state is quintet G two (5G2).

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