We get a term symbol of the type 2P, which gets split into separate symbols because J = 3/2 and 1/2. Two possible microstates exist for this system with term symbols of 2P3/2 and 2P1/2.

In atomic physics, a term symbol is an abbreviated description of the total spin and orbital angular momentum quantum numbers of the electrons in a multi-electron atom. So while the word symbol suggests otherwise, it represents an actual value of a physical quantity.

原子态符号表示只适用于 L-S 耦合，对于 j-j 耦合则不能用，因在 j-j 耦合中没有 S 和 L 的数值 [1]。 但是 j-j 耦合的光谱项有另一种类似的 原子态 表示，具体请看下面这道例题： 下面这张图最上面一行. 知乎上关于光谱项符号的更多优质内容： 1.《原子物理学》 崔宏滨 第2版 中国科学技术大学出版社. 2. 原子物理学 （第四版）学习辅导书 吕华平 刘莉 主编. ^ 习惯用小写字母代表单个粒子（比如原子中的一个电子）的量子数，用大写字母代表整个原子的总量子数（耦合的结果） …

The details of how to determine the term symbols for multi-electron atoms and for cases where both the orbital and spin angular momentum differ from zero are given elsewhere, along with rules for determining the relative energies of the terms.

There is only one term symbol 2S1/2. For one p electron, L=1, S=1/2, and J can be 1/2 or 3/2, corresponding to term symbols 2P1/2 and 2P3/2. Similarly a single d electron has term symbols 2D3/2 and 2D5/2 and a single f-electron 2F5/2 and 2F7/2. The …

The term symbol indicates the total orbital angular momentum of the atom, (L), and the multiplicity, (2S + 1), of the state. The multiplicity can be found with the formula, (2S + 1), but it is also equal to the number of unpaired electrons plus one.

2012年3月17日 · This symbol is ‘read’: “doublet Ess one half” Exciting the single hydrogenic electron to higher orbitals results in different atomic states or 'terms' of the atom.

2016年11月24日 · The term symbol has the form 2S+1LJ 2 S + 1 L J. The super-prefix is the spin multiplicity, for spin angular momentum this is 2S + 1 2 S + 1 or in general 2X + 1 2 X + 1 for angular momentum X.

Learn about atomic term symbols, quantum numbers, multiplicity, and molecular quantum numbers. College-level chemistry lecture notes.

2018年12月24日 · I used exactly the same reasoning to arrive at the possible spectroscopic terms for (2p) (3p) as 1S0,1D2,3P0,1,2 1 S 0, 1 D 2, 3 P 0, 1, 2. After all, the electrons must still obey the same exchange symmetry so we would want each state to be a product of a symmetric and antisymmetric state (position, spin).