MTL 200 Final Exam Questions and
Answers 100% Solve
What are ceramics? -
correct answer ✅Ceramics are elements composed of at least two
elements, often more, with complex crystal structures that range
from purely ionic to totally covalent.
Anisotropy -
correct answer ✅directionality of properties
What influences the crystal structure of ceramics? -
correct answer ✅The electrical charge of ions and the relative
sizes of the anion and cation.
Why must a ceramic molecule be neutral? -
correct answer ✅The net charge across the cation and anion must
be 0, and the whole ceramic molecule must be neutral.
What do cations and anions prefer in terms of nearest neighbors? -
correct answer ✅Cations prefer to have as many nearest neighbor
anions as possible, and anions prefer to have as many cations as
possible.
,MTL 200 Final Exam Questions and
Answers 100% Solve
What are the most common coordination numbers in ceramics? -
correct answer ✅The most common coordination numbers in
ceramics are 4, 6, and 8
What happens when the ratio of the radii is greater than 1? -
correct answer ✅The coordination number is 12.
What are the 3 types of ceramic crystal structures? -
correct answer ✅AX, AmXp, and AmBnXp Type
What are the 3 subdivisions of AX- Type ceramic structure? -
correct answer ✅1. Rock salt structure (NaCl)
2. Cesium Chloride Structure (CsCl)
3. Zinc Blende Structutre (ZnS)
What is the main relationship between the unit cell and rock salt
structure (NaCl) and its coordination number? -
correct answer ✅The main relationship is 2(r_c + r_a) = a.
Its coordination number is 6.
, MTL 200 Final Exam Questions and
Answers 100% Solve
How many anions and cations do you have in a Rock Salt Structure?
-
correct answer ✅4 anions and 4 cations.
What is the main relationship between the unit cell and cesium
chloride structure (CsCl)and its coordination number? -
correct answer ✅The main relationship is 2(r_c + r_a) = sqrt(3)a.
Its coordination number is 8.
What is the main relationship between the unit cell and zinc blende
structure (ZnS) and its coordination number? -
correct answer ✅The main relationship is 4(r_c + r_a) = sqrt(3)a.
Its coordination number is 4.
What is the equation for the volume of a sphere? -
correct answer ✅V=4/3 πr³
What are the examples of ceramics with rock salt structure (NaCl)?
-
correct answer ✅Examples include NaCl, MgO, MnS, LiF, and FeO.
Answers 100% Solve
What are ceramics? -
correct answer ✅Ceramics are elements composed of at least two
elements, often more, with complex crystal structures that range
from purely ionic to totally covalent.
Anisotropy -
correct answer ✅directionality of properties
What influences the crystal structure of ceramics? -
correct answer ✅The electrical charge of ions and the relative
sizes of the anion and cation.
Why must a ceramic molecule be neutral? -
correct answer ✅The net charge across the cation and anion must
be 0, and the whole ceramic molecule must be neutral.
What do cations and anions prefer in terms of nearest neighbors? -
correct answer ✅Cations prefer to have as many nearest neighbor
anions as possible, and anions prefer to have as many cations as
possible.
,MTL 200 Final Exam Questions and
Answers 100% Solve
What are the most common coordination numbers in ceramics? -
correct answer ✅The most common coordination numbers in
ceramics are 4, 6, and 8
What happens when the ratio of the radii is greater than 1? -
correct answer ✅The coordination number is 12.
What are the 3 types of ceramic crystal structures? -
correct answer ✅AX, AmXp, and AmBnXp Type
What are the 3 subdivisions of AX- Type ceramic structure? -
correct answer ✅1. Rock salt structure (NaCl)
2. Cesium Chloride Structure (CsCl)
3. Zinc Blende Structutre (ZnS)
What is the main relationship between the unit cell and rock salt
structure (NaCl) and its coordination number? -
correct answer ✅The main relationship is 2(r_c + r_a) = a.
Its coordination number is 6.
, MTL 200 Final Exam Questions and
Answers 100% Solve
How many anions and cations do you have in a Rock Salt Structure?
-
correct answer ✅4 anions and 4 cations.
What is the main relationship between the unit cell and cesium
chloride structure (CsCl)and its coordination number? -
correct answer ✅The main relationship is 2(r_c + r_a) = sqrt(3)a.
Its coordination number is 8.
What is the main relationship between the unit cell and zinc blende
structure (ZnS) and its coordination number? -
correct answer ✅The main relationship is 4(r_c + r_a) = sqrt(3)a.
Its coordination number is 4.
What is the equation for the volume of a sphere? -
correct answer ✅V=4/3 πr³
What are the examples of ceramics with rock salt structure (NaCl)?
-
correct answer ✅Examples include NaCl, MgO, MnS, LiF, and FeO.
