In the definition for Crystal Systems, the difference between Triclinic and Monoclinic, or Monoclinic and Orthorhombic, is due to: Restraining the axial cell lengths to be equal to each other. Restraining the cell angles to be equal to 90 degrees. The impossibility of placing regular pentagons into a repeating 3-dimensional lattice. The addition of independent symmetry elements. The recognition that a cell need not be primitive, but can be A, B, C, I or F centered.

In the definition for Crystal Systems, the difference between Triclinic and Monoclinic, or Monoclinic and Orthorhombic, is due to: Restraining the axial cell lengths to be equal to each other. Restraining the cell angles to be equal to 90 degrees. The impossibility of placing regular pentagons into a repeating 3-dimensional lattice. The addition of independent symmetry elements. The recognition that a cell need not be primitive, but can be A, B, C, I or F centered.

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter21: Structure And Bonding In Solids

Section: Chapter Questions

Problem 31P

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