Mental models of atomic spectra

Chemistry topics that involve any aspect of quantum theory are often problematic for students. This may be due to the increased numerical demands from a topic that is primarily assessed through calculations. In addition, aspects of quantum theory are abstract and often counter-intuitive, placing additional strain on students developing an understanding beyond any numerical difficulties.

In this study, Nilüfer Kӧrhasan and Lu Wang shed some light on students’ understanding of the topic of atomic spectra, paying particular attention to the quantum mechanical context. An important aspect of this topic area is that a student’s understanding of atomic spectra is informed by two underlying models: atomic structure and the wave–particle duality of light.