Ch.12 Quiz Solids

Amorphous solid: particles that are (a)   arranged throughout with no discernible pattern.

• randomly
• uniformly
• sequentially
• structurally

Identify the ionic solid from the following options.

• Cl₂

• H₂Te

• AlF₃

• C (graphite)

Classify the diamond as amorphous, molecular, network covalent, alloy or ionic:

• Amorphous

• Molecular

• Network Covalent

• Alloy

• Ionic

What is the most basic repeating structure of a crystal lattice?

• lattice point

• unit cell

• crystalline solid

• atom

The Body-Centered Cubic Unit Cell is composed of a cube with an atom at each corner and ___ atom(s) in the center.

An element crystallizes in a face-centered cubic lattice. How many atoms are in each unit cell?

• a) 4 atoms

• b) 2 atoms

• c) 1 atom

• d) 3 atoms

Which type of solid is hard, brittle, and nonconducting unless dissolved in H₂O?

• Ionic Crystal
• Covalent Molecular Crystal
• Metallic Crystal
• Covalent Network Crystal

David, Nora, and Noah are working on a science project about crystal structures. They are studying a Face-Centered Cubic (FCC) lattice model. They need to determine the number of atoms per unit cell in their FCC lattice model. How many atoms are there in each unit cell of their FCC lattice?

• 1

• 2

• 3

• 4

Match the following

• alloy

• Steel

• ionic solid

• CaCO₃

• molecular solid

• CO₂ (s)

• network covalent solid

• Graphite

A certain substance that has a low melting point and does not conduct electricity in solution or when melted. This substance is likely to be

• a covalent network solid

• a metallic solid

• an ionic solid

• a molecular solid