Crystal Structure and Packing Quiz

What is the term used to describe the smallest repeating unit in a crystal structure?

• Crystal system

• Unit cell

• Lattice point

• Molecular pattern

Which of the following is an example of a triclinic crystal system?

• Sulfur

• Dolomite

• Turquoise

• Zinc sulfide

In which crystal system is zinc sulfide categorized?

• Hexagonal

• Cubic

• Monoclinic

• Tetragonal

What is the sequence of layers in hexagonal close packing (hcp)?

• AB AB

• AABBCC

• ABCA BC

• ABC ABC

Which type of hole is formed between three atoms in one layer and a single atom in another layer?

• Cubic hole

• Tetrahedral hole

• Octahedral hole

• Hexagonal hole