University Chemistry ›› 2021, Vol. 36 ›› Issue (12): 2101036.doi: 10.3866/PKU.DXHX202101036

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Techniques of Learning the Arrangement of the Holes in Close-Packed Structures

Hongwei Sun(), Lan Chen   

  • Received:2021-01-20 Accepted:2021-02-18 Published:2021-03-15
  • Contact: Hongwei Sun


The hcp and ccp are the two main structures that most metals adopt. The tetrahedral holes and octahedral holes in these structures are commonly difficult for students to grasp. In this paper, we focus on the arrangement of the holes in the close-packed structures. This is also very helpful in learning ionic crystals.

Key words: Hole, Metallic crystal, Ionic crystal, Close-packed layer, Close-packed structure

  • G64