Lesson 4: Solids Flashcards
1
Q
What are the two categories of solids?
A
- Crystalline
- Amorphous
2
Q
- arranged in fixed geometric patterns or lattices
- has definite melting point
A
Crystalline
3
Q
What are the four types of crystalline solid?
A
- Metallic solids
- Ionic solids
- Molecular solids
- Covalent network solids
4
Q
- random orientation of particles
- super cooled liquids
- softens gradually over a wide range of temperature
A
Amorphous
5
Q
Examples of this type solid are plastic, glass, coal, and rubber
A
Amorphous
6
Q
Examples of this type of solid are ice and sodium chloride, copper sulfate, diamond, graphite, and sugar
A
Crystalline
7
Q
- “sea of electrons model”
- has atoms that readily lose electrons, but no atom in the crystal would readily gain electrons
- interaction between cations and delocalized electron
- shiny in appearance
A
Metallic solids
8
Q
- made of ions
- hard and high melting points
A
Ionic solids
9
Q
- made of atoms held together by a mix if hydrogen bonds, dipole-dipole, and dispersion forces
- most have low melting points
A
Molecular solids
10
Q
- made up of covalently bonded atoms
- a very large molecule
- strongest type of solid
A
Covalent Network Solids
11
Q
[Identify the type of solid]
Diamond
A
Covalent Network Solids
12
Q
[Identify the type of solid]
Sugar
A
Molecular Solid
13
Q
[Identify the type of solid]
Copper
A
Metallic solid
14
Q
[Identify the type of solid]
Sodium chloride
A
Ionic solid
15
Q
[Identify the type of solid]
Gold
A
Metallic solid
