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WorksheetsCrystal Structure
Total questions: 25
Worksheet time: 11mins
Number of atom/s in simple cubic (SC) is ------------.
0
1
2
4
Give number of atom/s in BCC.
0
1
2
4
Give number of atom/s in FCC.
2
4
6
8
Effective number of atoms in HCP.
2
4
6
8
Which crystal structure does the picture show?
BBC (British Broadcasting Company)
BCC (Body Center Cubic)
SC (Simple Cubic)
FCC (Face-Centered Cubic)
what is the percentage of emptiness in the Simple Cubic form?
48%
32%
26%
56%
The correct order of the packing efficiency in different types of unit cells is _______?
fcc < bcc < simple cubic
fcc > bcc > simple cubic
fcc < bcc > simple cubic
bcc < fcc > simple cubic
Repeatable entity of a crystal structure is known as
Crystal
Lattice
Unit cell
Miller indices
Coordination number for closest packed crystal structure
16
12
8
4
Atomic packing factor is
Distance between two adjacent atoms
Projected area fraction of atoms on a plane
Volume fraction of atoms in cell
None
Coordination number in simple cubic crystal structure
8
6
12
10
-----------is defined as the number of nearest atoms which are directly surrounding given atom
lattice
Bravias
Atomic packing factor
Co-ordination no.
Co-ordination no. & Atomic Packing Fraction of HCP structure is same as that of the -----------
SC
BCC
FCC
BCT
Which unit cell has eight particles located in the corners, has sides that are all the same length, and has angles of only 90?
body-centered cubic unit cell
triclinic unit cell
face-centered cubic unit cell
simple cubic unit cell
Atomic radius of BCC sturucture is
3 a/4
2 a/4
4a/ 3
a/2
Example for simple cubic structure is
Copper
Polanium
Magnisium
Zinc
Packing density of BCC stucture is ----------(percentage)
74
32
54
68
Example for HCP strucure is
Iron
Barium
Zinc
Nickel
Atomic radius for FCC structure is
a/2
a√3/4
a/4
a√2/4
Lead is a metallic crystal having a _______ structure
SC
FCC
BCC
HCP
What is the atomic packing factor of FCC structure?
0.74
0.58
0.96
0.32
Identify the given crystal structure
HCP
SC
FCC
BCC
Identify the given crystal structure.
FCC
HCP
BCC
SC
Copper has FCC structure and its atomic radius is 1.273
A° . Calculate its lattice parameter.0.360 A°
0.63 A°
3.60 A°
3.06 A°
