Question 1

A metal crystallizes in a face-centered cubic lattice. The radius of the atom is 214 pm and the density of the element is 2.63 g/cm3. What is the identity of the metal?

Accepted Answer

A)  Ni 
B)  Yb 
C)  Cu 
D)  Ca 
E)  Sr 
A)  Ni 
B)  Yb 
C)  Cu 
D)  Ca 
E)  Sr

Question 2

The bandgap of ZnTe is 218 kJ/mol. What is the maximum wavelength of light that can excite an electron transition across the band gap? (h = 6.626 × 10-34 J·s; c = 3.000 × 108 m/s)

Accepted Answer

A)  551 nm 
B)  549.0 nm 
C)  7298 nm 
D)  873.7 nm 
E)  517 nm 
A)  551 nm 
B)  549.0 nm 
C)  7298 nm 
D)  873.7 nm 
E)  517 nm

Question 3

Which equation represents the number of atoms in a body-centered cubic unit cell?

Accepted Answer

A)  $\# \text { atoms } = \frac { 1 } { 8 } ( 8 )$ 
B)  $\# \text { atoms } = \frac { 1 } { 4 } ( 8 )$ 
C)  $\# \text { atoms } = 1 + \frac { 1 } { 8 } ( 8 )$ 
D)  $\# \text { atoms } = \frac { 1 } { 2 } ( 6 ) + \frac { 1 } { 8 } ( 8 )$ 
E)  $\# \text { atoms } = 1 + \frac { 1 } { 2 } ( 6 ) + \frac { 1 } { 8 } ( 8 )$ 
A)  $\# \text { atoms } = \frac { 1 } { 8 } ( 8 )$ 
B)  $\# \text { atoms } = \frac { 1 } { 4 } ( 8 )$ 
C)  $\# \text { atoms } = 1 + \frac { 1 } { 8 } ( 8 )$ 
D)  $\# \text { atoms } = \frac { 1 } { 2 } ( 6 ) + \frac { 1 } { 8 } ( 8 )$ 
E)  $\# \text { atoms } = 1 + \frac { 1 } { 2 } ( 6 ) + \frac { 1 } { 8 } ( 8 )$

Question 4

A sketch of a phase diagram is given below.   Which statement about this diagram is not true?

Accepted Answer

A)  Increasing pressure at constant temperature can melt the solid. 
B)  Increasing temperature at constant pressure can cause the solid to sublime. 
C)  Increasing temperature at constant pressure can cause the liquid to vaporize. 
D)  Increasing pressure at constant temperature can cause deposition of solid from gas. 
E)  Increasing pressure at constant temperature can cause liquid to freeze. 
A)  Increasing pressure at constant temperature can melt the solid. 
B)  Increasing temperature at constant pressure can cause the solid to sublime. 
C)  Increasing temperature at constant pressure can cause the liquid to vaporize. 
D)  Increasing pressure at constant temperature can cause deposition of solid from gas. 
E)  Increasing pressure at constant temperature can cause liquid to freeze.

Question 5

Silver chloride adopts the sodium chloride (rock salt) structure. The length of a unit cell edge is 555 pm. What is the density of AgCl?

Accepted Answer

A)  5.57 g/cm3 
B)  4.19 g/cm3 
C)  2.79 g/cm3 
D)  2.10 g/cm3 
E)  1.39 g/cm3 
A)  5.57 g/cm3 
B)  4.19 g/cm3 
C)  2.79 g/cm3 
D)  2.10 g/cm3 
E)  1.39 g/cm3

Question 6

What is the distance, in atomic radii, along any edge of a body-centered cubic unit cell?

Accepted Answer

A)  $\frac { 4 \times r } { \sqrt { 3 } }$ 
B)  2 × r 
C)  4 × r 
D)  $\frac { 2 \times r } { \sqrt { 4 } }$ 
E)  r 
A)  $\frac { 4 \times r } { \sqrt { 3 } }$ 
B)  2 × r 
C)  4 × r 
D)  $\frac { 2 \times r } { \sqrt { 4 } }$ 
E)  r

Question 7

In what type of unit cell are the "A" atoms arranged in the given unit cell? 2

Accepted Answer

A)  primitive cubic 
B)  body-centered cubic 
C)  face-centered cubic 
A)  primitive cubic 
B)  body-centered cubic 
C)  face-centered cubic

A metal crystallizes in a face-centered cubic lattice. The radius of the atom is 214 pm and the density of the element is 2.63 g/cm³. What is the identity of the metal?

The bandgap of ZnTe is 218 kJ/mol. What is the maximum wavelength of light that can excite an electron transition across the band gap? (h = 6.626 × 10^-34 J·s; c = 3.000 × 10⁸ m/s)

Which equation represents the number of atoms in a body-centered cubic unit cell?

A sketch of a phase diagram is given below. Which statement about this diagram is not true?

Silver chloride adopts the sodium chloride (rock salt) structure. The length of a unit cell edge is 555 pm. What is the density of AgCl?

What is the distance, in atomic radii, along any edge of a body-centered cubic unit cell?

In what type of unit cell are the "A" atoms arranged in the given unit cell? 2

Basic Concepts of Chemistry

Lets Review: the Tools of Quantitative Chemistry

Atoms, Molecules, and Ions

Chemical Reactions

Stoichiometry: Quantitative Information About Chemical Reactions

Principles of Chemical Reactivity: Energy and Chemical Reactions

The Structure of Atoms

The Structure of Atoms and Periodic Trends

Bonding and Molecular Structure

Bonding and Molecular Structure Orbital Hybridization and Molecular Orbitals

Gases and Their Properties

Intermolecular Forces and Liquids

Solutions and Their Behavior

Chemical Kinetics: the Rates of Chemical Reactions

Principles of Chemical Reactivity: Equilibria

Principles of Chemical Reactivity: the Chemistry of Acids and Bases

Principles of Chemical Reactivity: Other Aspects of Aqueous Equilibria

Principles of Chemical Reactivity: Entropy and Free Energy

Principles of Chemical Reactivity: Electron Transfer Reactions

Environmental Chemistry: Earths Environment, Energy, and Sustainability

The Chemistry of the Main Group Elements

The Chemistry of the Transition Elements

Carbon: Not Just Another Element

Biochemistry

Nuclear Chemistry

Filters

Exam 13: The Solid State

A metal crystallizes in a face-centered cubic lattice. The radius of the atom is 214 pm and the density of the element is 2.63 g/cm3. What is the identity of the metal?

The bandgap of ZnTe is 218 kJ/mol. What is the maximum wavelength of light that can excite an electron transition across the band gap? (h = 6.626 × 10-34 J·s; c = 3.000 × 108 m/s)

Which equation represents the number of atoms in a body-centered cubic unit cell?

A sketch of a phase diagram is given below. Which statement about this diagram is not true?

Silver chloride adopts the sodium chloride (rock salt) structure. The length of a unit cell edge is 555 pm. What is the density of AgCl?

What is the distance, in atomic radii, along any edge of a body-centered cubic unit cell?

In what type of unit cell are the "A" atoms arranged in the given unit cell? 2

Basic Concepts of Chemistry

Lets Review: the Tools of Quantitative Chemistry

Atoms, Molecules, and Ions

Chemical Reactions

Stoichiometry: Quantitative Information About Chemical Reactions

Principles of Chemical Reactivity: Energy and Chemical Reactions

The Structure of Atoms

The Structure of Atoms and Periodic Trends

Bonding and Molecular Structure

Bonding and Molecular Structure Orbital Hybridization and Molecular Orbitals

Gases and Their Properties

Intermolecular Forces and Liquids

Solutions and Their Behavior

Chemical Kinetics: the Rates of Chemical Reactions

Principles of Chemical Reactivity: Equilibria

Principles of Chemical Reactivity: the Chemistry of Acids and Bases

Principles of Chemical Reactivity: Other Aspects of Aqueous Equilibria

Principles of Chemical Reactivity: Entropy and Free Energy

Principles of Chemical Reactivity: Electron Transfer Reactions

Environmental Chemistry: Earths Environment, Energy, and Sustainability

The Chemistry of the Main Group Elements

The Chemistry of the Transition Elements

Carbon: Not Just Another Element

Biochemistry

Nuclear Chemistry

Filters

A metal crystallizes in a face-centered cubic lattice. The radius of the atom is 214 pm and the density of the element is 2.63 g/cm³. What is the identity of the metal?

The bandgap of ZnTe is 218 kJ/mol. What is the maximum wavelength of light that can excite an electron transition across the band gap? (h = 6.626 × 10^-34 J·s; c = 3.000 × 10⁸ m/s)