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Paper Details

Study on the atomic term symbols for f4 (M+3 free ion) configuration

1P.L.Meena*, 1P.K.Jain, 1N.Kumar and 1K.S.Meena and 2R.Goyal

Journal Title:Journal of Chemical, Biological and physical sciences

The term is a particular energy state and term symbol is a label to energy state .The importance of these term symbols has been emphasized in connection with the spectral and magnetic properties of complexes and metal free ions and also provide information about the energy of atomic electrons in orbitals and Total spin, Total orbital and grand total momenta of whole atom and electronic configuration.Ressel-saunders (L-S) coupling and j-j coupling schemes are important schemes for determination of terms and term symbols of the atoms and ions of inner transition elements in which electrons are filled in a f sub-shell with azimuthal quantum number 3.In this proposed work computation is done for calculating all possible terms for f4 configurations without any long tabulation with mental exercise. In recent years a great interest is increased in the field of lanthanide and actinide. The determination of terms and term symbols for fn configuration is very difficult work since there are seven orbitals in f-sub shell which give large number of microstates. The possible microstates and spectroscopic terms calculated for f4 configuration (ions M+3) are 1001and 47. These terms are quintets (5), triplets (9) and singlets (9).