单词	quantum number
释义	quantum number noun : any of a set of numbers that indicate the magnitude of various discrete quantities (such as electric charge) of a particle or system and that serve to define its state Example Sentences Recent Examples on the Web Middle Sister prattled on about how an atom having six principal quantum numbers can yield several emission lines, or some such. Chicago Tribune, chicagotribune.com, 2 June 2018 Word History First Known Use 1902, in the meaning defined above
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