Abstract Using the concept of “particle occupancy” to integrate the concepts of “common apportionment” “gapless juxtaposition” and “particle common occupancy” is of great significance to the study of crystal structure in senior high school. Using the Yuchuanite structures provided by Li Guowu, it is concluded that the particle numbers in the cell are different due to different cell (frame) positions through inference analysis and theoretical tracing. The particle numbers in the cell can be calculated more accurately by using the concept of “particle occupancy”. This conclusion is helpful for senior high school students to understand the crystal structure and calculate the number of particles in the cell. Meanwhile, the whole teaching design of large unit is also given.
PENG Wen-Kun. Reconstruction of Cognition of Particle Number in a Cell by “Particle Occupancy”: Yuchuanite Crystal Structure[J]. Chinese Journal of Chemical Education, 2024, 45(15): 112-118.
