Hund rules

In this paper , from analyzing LS coupling . lead out the statement form of Hund 's rules in jj coupling .

本文从分析LS偶合情况入手，导出Hund规则在jj偶合中表述形式。

According to Hund 's rules , we present a concise formula with which atomic or ionic ground state can be difined only by the electronic number of not filled subshell .

根据Hund定则，给出了直接用未满壳层电子数确定原子、离子基态的数学公式。

The statement of Hund 's rules for jj & coupling must be divided into two parts depending on whether or not a_1 and a_2 are equal . This is , the lowest level depends On the relative values of j_i and l_i for interacting electrons .

对于j&j偶合，Hund规则的表述必须分为两部分，决定于α1和α2是否相等，即最低能级决定于相互作电子的j1和l1的相对数值。