Free Printable Crystal Structures

1.

Number of atom/s in simple cubic (SC) is ------------.

a)

0

b)

1

c)

2

d)

4

2.

Give number of atom/s in BCC.

a)

0

b)

1

c)

2

d)

4

3.

Give number of atom/s in FCC.

a)

2

b)

4

c)

6

d)

8

4.

Effective number of atoms in HCP.

a)

2

b)

4

c)

6

d)

8

5.

Which crystal structure does the picture show?

a)

BBC (British Broadcasting Company)

b)

BCC (Body Center Cubic)

c)

SC (Simple Cubic)

d)

FCC (Face-Centered Cubic)

6.

what is the percentage of emptiness in the Simple Cubic form?

a)

48%

b)

32%

c)

26%

d)

56%

7.

Which of the given cubic structure has the highest packing factor

a)

FCC

b)

BCC

c)

SC

d)

none

8.

The correct order of the packing efficiency in different types of unit cells is _______?

a)

fcc < bcc < simple cubic

b)

fcc > bcc > simple cubic

c)

fcc < bcc > simple cubic

d)

bcc < fcc > simple cubic

9.

Repeatable entity of a crystal structure is known as

a)

Crystal

b)

Lattice

c)

Unit cell

d)

Miller indices

10.

Coordination number for closest packed crystal structure

a)

16

b)

12

c)

8

d)

4

11.

Atomic packing factor is

a)

Distance between two adjacent atoms

b)

Projected area fraction of atoms on a plane

c)

Volume fraction of atoms in cell

d)

None

12.

Coordination number in simple cubic crystal structure

a)

8

b)

6

c)

12

d)

10

13.

-----------is defined as the number of nearest atoms which are directly surrounding given atom

a)

lattice

b)

Bravias

c)

Atomic packing factor

d)

Co-ordination no.

14.

Co-ordination no. & Atomic Packing Fraction of HCP structure is same as that of the -----------

a)

SC

b)

BCC

c)

FCC

d)

BCT

15.

Which unit cell has eight particles located in the corners, has sides that are all the same length, and has angles of only 90?

a)

body-centered cubic unit cell

b)

triclinic unit cell

c)

face-centered cubic unit cell

d)

simple cubic unit cell

16.

Atomic radius of BCC sturucture is

a)

$\sqrt{3}$ a/4

b)

$\sqrt{2}$ a/4

c)

4a/ $\sqrt{3}$

d)

a/2

17.

Example for simple cubic structure is

a)

Copper

b)

Polanium

c)

Magnisium

d)

Zinc

18.

Packing density of BCC stucture is ----------(percentage)

a)

74

b)

32

c)

54

d)

68

19.

Example for HCP strucure is

a)

Iron

b)

Barium

c)

Zinc

d)

Nickel

20.

Atomic radius for FCC structure is

a)

a/2

b)

a√3/4

c)

a/4

d)

a√2/4

21.

Lead is a metallic crystal having a _______ structure

a)

SC

b)

FCC

c)

BCC

d)

HCP

22.

What is the atomic packing factor of FCC structure?

a)

0.74

b)

0.58

c)

0.96

d)

0.32

23.

Identify the given crystal structure

a)

HCP

b)

SC

c)

FCC

d)

BCC

24.

Identify the given crystal structure.

a)

FCC

b)

HCP

c)

BCC

d)

SC

25.

Copper has FCC structure and its atomic radius is 1.273

A\degree

. Calculate its lattice parameter.

a)

0.360 $A\degree$

b)

0.63 $A\degree$

c)

3.60 $A\degree$

d)

3.06 $A\degree$

Crystal Structures

Total questions: 25

Worksheet time: 11mins

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