1. Glass is a ____________ material widely used in laboratory instrumentation and other common applications. It contains

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1. Glass is a ____________ material widely used in laboratory
instrumentation and other common applications. It contains silicon
oxide.
a. crystalline
b. amorphous
c. driver
d. metal
2. When we talk about the crystal cells, the vectors a, b,
c and the angles alpha , beta and gamma are known as:
a. bravais nets
b. Laue groups
c. cell parameters
d. Miller indices
3. Solving a crystal structure means…
a. know the identity of all the elements that are present in the
species.
b. know all the bond lengths between the atoms present in the
species.
c. know all the bond angles between the atoms present in the
species.
d. know the identity of all atoms, bond angles, and bond
lengths.
4. In a crystal lattice interstitial defects can be found;
these occur when
a. an atom occupies the position of one of the lattice
atoms
b. an atom occupies a cavity in the crystal lattice
c. a larger atom occupies a vertex in the lattice
d. a smaller atom replaces an atom in the lattice