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一、光谱选律的确定电子光谱的产生是电子在不同能级之间跃迁的结果,但是并非任意两个能级之间都能发生电子跃迁,它们必须满足一定的限制条件,光谱学上称之为选择定则。符合选择定则的为跃迁允许,反之为跃迁禁阻,对光谱选律的研究是光谱学中的一个重要课题。设一个体系在频率v_(mn)的电磁辐射下单位时间内吸收的能量为kv_(mn),这个体系从态Ψ_m跃迁到Ψ_n的
First, the determination of the spectrum of election law Electronic spectrum is the result of the electronic transition between different energy levels, but not between any two energy levels can occur electronic transitions, they must meet certain constraints, the spectroscopy The choice of rules. Matching the selection rules for the transition allowed, on the contrary forbid the transition, the study of the spectrum of law is an important issue in spectroscopy. Let a system absorb energy kv_ (mn) per unit time under the electromagnetic radiation of frequency v_ (mn), this system jumps from state Ψ_m to Ψ_n