| The development directions and the present main research contents of atomic and molecular physics are commented firstly. After the summarization of the methods in the theory of atomic structure, the occasion that highly excited and highly charged ions have been the important research area is expounded. The property of the Lithium-like atoms, especially, the ions of three electrons with 1s~2-core is important because of their particularity. In this paper, FCPC method is extended to calculated the energy structures of 1s~2nl (l = d, f; n≤9) states... |
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