Abstract This paper introduces the teaching design idea of “description of extranuclear electron motion state (optional compulsory 2)” in senior high school chemistry. In the teaching,integrate the development history of scientists introducing four quantum number to describe the motion state of extranuclear electrons based on spectral experimental evidence,guide students to develop the atomic structure model, and organically combine it with the cognitive perspective of chemical microcosm. This paper presents relevant teaching records, including stimulating students' cognitive conflicts through spectral experiments; The atomic spectrum is analyzed, and the physical quantity describing the motion state of extranuclear electrons is introduced; Observe the electron cloud and understand the quantized atomic structure model. Through the performance of students, the teaching objectives are evaluated.
WANG Tao, HU Xiao-Ning. Using Spectral Experimental Evidence to Guide Students to Understand the Motion State of Extranuclear Electrons[J]. Chinese Journal of Chemical Education, 2023, 44(9): 62-69.
