FCC Unit Cell Concepts

FCC Unit Cell Concepts

Assessment

Interactive Video

Physics, Chemistry, Science

9th - 12th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains the face-centered cubic (FCC) unit cell, highlighting its structure, coordination number, lattice parameter, and packing fraction. It compares FCC with simple cubic and body-centered cubic cells, emphasizing the higher density of FCC. The tutorial also covers the calculation of atoms per unit cell, the concept of primitive cells, and fundamental translational vectors. Examples of materials with FCC structures, such as aluminum and copper, are provided.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main focus of the video regarding the FCC unit cell?

Comparison with simple cubic and body-centered cubic unit cells

Comparison with diamond cubic structures

Comparison with hexagonal structures

Comparison with amorphous structures

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many atoms are located at the corners of the FCC unit cell?

Eight

Four

Six

Twelve

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the coordination number of an FCC unit cell?

Twelve

Ten

Eight

Six

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the lattice parameter 'a' in terms of the atomic radius 'R' for an FCC unit cell?

a = 3R

a = 5R/√2

a = 4R/√2

a = 2R

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many atoms are effectively present inside an FCC unit cell?

One

Two

Three

Four

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the packing fraction of an FCC unit cell?

74%

80%

68%

52%

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which unit cell has the highest packing fraction among simple cubic, BCC, and FCC?

Simple cubic

BCC

FCC

All have the same

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