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SS1 3rd Term Week 9 Worksheet

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SS1
Physics
Crystal Structure
__________________
C Mendel Lattice
1.
A crystal is a solid composed of atoms,
ions, or molecules arranged in a pattern that is
periodic in HOW MANY DIMENSIONS?
A
3
B
1
C
2
D
4
D Bravais Lattice
7.
An extra lattice point is centered in each of
two opposing faces of the cell.
A body-centered
B end-centered
C face-centered simple D primitive unit cell
2.
It is the smallest part of a crystal that, if
repeated regularly by translation in three
dimensions, creates the whole crystal.
8.
An extra lattice point is centered in the
exact middle of the cell.
A
cell
plant cell
A face-centered
C
unit cell D
cellular body
C simple primitive unit cell
3.
It is a periodic array of structural units,
such as atoms or molecules. It can be constructed
by the infinite repetition of these identical
structural units in space.
A
Ionic Crystal
B
Covalent Crystal
C
Metallic Crystal D
4.
The unit cell of a crystal is defined by
Ideal Crystal
A
crystal's growth time
shape
B
crystal's
C
crystal's texture D
points
crystal's
9.
Nigerian Tulip International Colleges
B
lattice
B body-centered
D end-centered
It contains exactly one lattice point.
A non-primitive unit cell
B body-centered unit cell
C face-centered unit cell
D primitive unit cell
10.
It tends to be densely packed. Typically,
only one element is present, so all atomic radii are
the same. It has the simplest crystal structures.
A Metallic Crystals
B Ideal Crystals
C Ionic Crystals
D Covalent Crystals
11.
It is an ordered array of points describing
the arrangement of particles that form a crystal.
5.
He showed that crystals could be divided
into 14 unit cells.
A structure
B vertices
D lattice
A
Auguste Bravais B
Jude Bravais
C point
C
Ralp Bravais
Gabriel Bravais
12.
An extra lattice point is centered in every
face of the cell.
D
6.
An infinite array of discrete points with an
arrangement and orientation that appears exactly
the same, from any of the points the array is
viewed from.
A Same Lattice
B Infinite Lattice
[1]
A end-centered
B face-centered
C body-centered
D zero-centered cell
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