ⅡA、ⅡB族第一激发态原子中的角动量耦合

THE ANGULAR MOMENTUN COUPLING WITHIN THE FIRST EXCITED STATE OF AN ATOM OF ⅡA AND ⅡB FAMILIES

随着主量子数ｎ增大．ⅡＡ、ⅡＢ族第一激发态原子中价壳层电子间库仑排斥作用减弱，电子自身自旋－轨道相互作用相对增强，从而导致其对ＬＳ耦合方式的逐渐偏离和ｊｊ耦合方式的逐渐介入．组态混合方法可用来定量计算ＬＳ耦合方式的偏离程度．

In the first excited state of an atom of ⅡA and ⅡB families, the departure from the LS coupling and interference with jj cuopling is analysed. The state admixture method for calculating the departure extent of LS coupliflg are introduced.