Calculations of Energy Levels Using the Weakest Bound Electron Potential Model Theory |

T.-Y. Zhang and N.-W. Zheng
Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China |

Received: November 29, 2008; |

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In this paper, we introduce a new method for calculation of energy levels in detail and give our results for several iso-spectrum-level series as examples: [He] 2s2p ^{1}P_{1}, [He] 2s2p ^{3}P_{0}, [He] 2s2p ^{3}P_{2}, and [He] 2s3s ^{3}S_{1} series of Be-like sequence; [Ne] 3s^{2}3d ^{2}D_{3/2} series and [Ne] 3s^{2}3d ^{2}D_{5/2} series of Al-like sequences; [Ne] 4p ^{2}P_{1/2} series, [Ne] 5d ^{2}D_{5/2} series, and [Ne] 6f ^{2}F_{7/2} series of Na-like sequences. In the method I(Z)=T_{lim} (Z)-T(Z,n), where I(Z), T_{lim}(Z), and T(Z,n) denote ionization potential, series limit, and energy level of a given member, respectively. The expression of non-relativistic part of I(Z) is derived from weakest bound election potential model theory and relativistic effects of I(Z) are included by using a six-order polynomial in Z. Our results are compared with the experimental data and with those obtained by other theoretical method. |

DOI: 10.12693/APhysPolA.115.629 PACS numbers: 01.55.+b, 31.15.-p |