Question 1

Describe the shape of a p orbital.

Accepted Answer

A)  spherical 
B)  dumbbell shaped 
C)  three lobes 
D)  four lobes 
E)  eight lobes 
A)  spherical 
B)  dumbbell shaped 
C)  three lobes 
D)  four lobes 
E)  eight lobes

Question 2

Which of the following statements is TRUE?

Accepted Answer

A)  We can sometimes know the exact location and speed of an electron at the same time. 
B)  All orbitals in a given atom are roughly the same size. 
C)  Since electrons have mass, we must always consider them to have particle properties and never wavelike properties. 
D)  Atoms are roughly spherical because when all of the different shaped orbitals are overlapped, they take on a spherical shape. 
E)  All of the above are true. 
A)  We can sometimes know the exact location and speed of an electron at the same time. 
B)  All orbitals in a given atom are roughly the same size. 
C)  Since electrons have mass, we must always consider them to have particle properties and never wavelike properties. 
D)  Atoms are roughly spherical because when all of the different shaped orbitals are overlapped, they take on a spherical shape. 
E)  All of the above are true.

Question 3

Electromagnetic radiation with a wavelength of 640 nm appears as orange light to the human eye.The frequency of this light is ________   .

Accepted Answer

A)  4.688 ×   
B)  4.688 ×   
C)  1.920 ×   
D)  1.920 ×   
E)  2.133 ×   
A)  4.688 ×   
B)  4.688 ×   
C)  1.920 ×   
D)  1.920 ×   
E)  2.133 ×

Question 4

How many 8p orbitals exist?

Accepted Answer

A)  0 
B)  1 
C)  3 
D)  5 
E)  8 
A)  0 
B)  1 
C)  3 
D)  5 
E)  8

Question 5

Identify the color of a flame test for sodium.

Accepted Answer

A)  violet 
B)  red 
C)  white 
D)  yellow 
E)  blue 
A)  violet 
B)  red 
C)  white 
D)  yellow 
E)  blue

Question 6

Calculate the wavelength of light emitted from a mol of photons as they transition from   in the hydrogen atom.

Accepted Answer

A)  1093 nm 
B)  970 nm 
C)  342 nm 
D)  643 nm 
E)  740 nm 
A)  1093 nm 
B)  970 nm 
C)  342 nm 
D)  643 nm 
E)  740 nm

Question 7

How many sublevels are contained in the second shell (n = 2)of a given atom?

Accepted Answer

A)  1 
B)  2 
C)  9 
D)  4 
E)  3 
A)  1 
B)  2 
C)  9 
D)  4 
E)  3

Question 8

A green laser pointer has a wavelength of 532 nm.What is the energy of one mol of photons generated from this device?

Accepted Answer

A)  2.25 kJ/mol 
B)  3.74 × 10-19 kJ/mol 
C)  3.74 × 10-17 kJ/mol 
D)  225 kJ/mol 
E)  784 kJ/mol 
A)  2.25 kJ/mol 
B)  3.74 × 10-19 kJ/mol 
C)  3.74 × 10-17 kJ/mol 
D)  225 kJ/mol 
E)  784 kJ/mol

Question 9

How many orbitals are associated with an atom when n=5?

Accepted Answer

A)  4 
B)  9 
C)  16 
D)  25 
E)  36 
A)  4 
B)  9 
C)  16 
D)  25 
E)  36

Question 10

Determine the longest wavelength of light required to remove an electron from a sample of potassium metal,if the binding energy for an electron in K is 1.76 × 103 kJ/mol.

Accepted Answer

A)  147 nm 
B)  68.0 nm 
C)  113 nm 
D)  885 nm 
E)  387 nm 
A)  147 nm 
B)  68.0 nm 
C)  113 nm 
D)  885 nm 
E)  387 nm

Question 11

Which of the following transitions (in a hydrogen atom)represent emission of the longest wavelength photon?

Accepted Answer

A)  n = 1 to n = 3 
B)  n = 3 to n = 1 
C)  n = 3 to n = 5 
D)  n = 4 to n = 2 
E)  n = 5 to n = 4 
A)  n = 1 to n = 3 
B)  n = 3 to n = 1 
C)  n = 3 to n = 5 
D)  n = 4 to n = 2 
E)  n = 5 to n = 4

Question 12

Identify the color of a flame test for lithium.

Accepted Answer

A)  violet 
B)  red 
C)  white 
D)  yellow 
E)  blue 
A)  violet 
B)  red 
C)  white 
D)  yellow 
E)  blue

Question 13

Calculate the frequency of the red light emitted by a neon sign with a wavelength of 700 nm.

Accepted Answer

A)  2.33 × 1014 s-1 
B)  4.00 × 1014 s-1 
C)  4.29 × 1014 s-1 
D)  5.05 × 1014 s-1 
E)  3.50 × 1014 s-1 
A)  2.33 × 1014 s-1 
B)  4.00 × 1014 s-1 
C)  4.29 × 1014 s-1 
D)  5.05 × 1014 s-1 
E)  3.50 × 1014 s-1

Question 14

Calculate the frequency of the light emitted by a photon with a wavelength of 538.2 nm.

Accepted Answer

A)  7.36 × 1014 s-1 
B)  4.84 × 1014 s-1 
C)  9.04 × 1014 s-1 
D)  3.69 × 1014 s-1 
E)  5.57 × 1014 s-1 
A)  7.36 × 1014 s-1 
B)  4.84 × 1014 s-1 
C)  9.04 × 1014 s-1 
D)  3.69 × 1014 s-1 
E)  5.57 × 1014 s-1

Question 15

Calculate the wavelength of an electron (m = 9.11 × 10-28 g)moving at 3.66 × 106 m/s.

Accepted Answer

A)  1.99 × 10-10 m 
B)  5.03 × 10-10 m 
C)  1.81 × 10-10 m 
D)  5.52 × 10-9 m 
E)  2.76 × 10-9 m 
A)  1.99 × 10-10 m 
B)  5.03 × 10-10 m 
C)  1.81 × 10-10 m 
D)  5.52 × 10-9 m 
E)  2.76 × 10-9 m

Question 16

What total energy (in kJ)is contained in 1.0 mol of photons,all with a frequency of 2.75 × 1014 Hz?

Accepted Answer

A)  182 kJ 
B)  219 kJ 
C)  457 kJ 
D)  326 kJ 
E)  110 kJ 
A)  182 kJ 
B)  219 kJ 
C)  457 kJ 
D)  326 kJ 
E)  110 kJ

Question 17

Identify the color that has a wavelength of 700 nm.

Accepted Answer

A)  blue 
B)  green 
C)  red 
D)  yellow 
A)  blue 
B)  green 
C)  red 
D)  yellow

Question 18

Choose the one set of quantum numbers that contains an error.

Accepted Answer

A)  n = 6, l = 3, ml=+2 
B)  n = 3, l = 2, ml =0 
C)  n = 4, l = 0, ml = -3 
D)  n = 5, l = 4, ml = -2 
E)  n = 3, l =1, ml =-1 
A)  n = 6, l = 3, ml=+2 
B)  n = 3, l = 2, ml =0 
C)  n = 4, l = 0, ml = -3 
D)  n = 5, l = 4, ml = -2 
E)  n = 3, l =1, ml =-1

Question 19

Which of the following quantum numbers describes the size and energy of an orbital?

Accepted Answer

A)  magnetic quantum number 
B)  principal quantum number 
C)  angular momentum quantum number 
D)  spin quantum number 
E)  Schrödinger quantum number 
A)  magnetic quantum number 
B)  principal quantum number 
C)  angular momentum quantum number 
D)  spin quantum number 
E)  Schrödinger quantum number

Question 20

Calculate the wavelength (in nm)of the light emitted by a neon sign with a frequency of 4.60 × 1014 Hz.

Accepted Answer

A)  651 nm 
B)  1254 nm 
C)  730 nm 
D)  339 nm 
E)  440 nm 
A)  651 nm 
B)  1254 nm 
C)  730 nm 
D)  339 nm 
E)  440 nm

Exam 3: The Quantum Mechanical Model of the Atom

Describe the shape of a p orbital.

Which of the following statements is TRUE?

Electromagnetic radiation with a wavelength of 640 nm appears as orange light to the human eye.The frequency of this light is ________ .

How many 8p orbitals exist?

Identify the color of a flame test for sodium.

Calculate the wavelength of light emitted from a mol of photons as they transition from in the hydrogen atom.

How many sublevels are contained in the second shell (n = 2)of a given atom?

A green laser pointer has a wavelength of 532 nm.What is the energy of one mol of photons generated from this device?

How many orbitals are associated with an atom when n=5?

Determine the longest wavelength of light required to remove an electron from a sample of potassium metal,if the binding energy for an electron in K is 1.76 × 103 kJ/mol.

Which of the following transitions (in a hydrogen atom)represent emission of the longest wavelength photon?

Identify the color of a flame test for lithium.

Calculate the frequency of the red light emitted by a neon sign with a wavelength of 700 nm.

Calculate the frequency of the light emitted by a photon with a wavelength of 538.2 nm.

Calculate the wavelength of an electron (m = 9.11 × 10-28 g)moving at 3.66 × 106 m/s.

What total energy (in kJ)is contained in 1.0 mol of photons,all with a frequency of 2.75 × 1014 Hz?

Identify the color that has a wavelength of 700 nm.

Choose the one set of quantum numbers that contains an error.

Which of the following quantum numbers describes the size and energy of an orbital?

Calculate the wavelength (in nm)of the light emitted by a neon sign with a frequency of 4.60 × 1014 Hz.

Essentials: Units, Measurements, and Problem Solving

Atoms

Periodic Properties of the Elements

Molecules and Compounds

Chemical Bonding I

Chemical Bonding Ii

Chemical Reactions and Chemical Quantities

Introduction to Solutions and Aqueous Reactions

Thermochemistry

Gases

Liquids, Solids, and Intermolecular Forces

Crystalline Solids and Modern Materials

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry

Transition Metals and Coordination Compounds

Filters

Determine the longest wavelength of light required to remove an electron from a sample of potassium metal,if the binding energy for an electron in K is 1.76 × 10³ kJ/mol.

Calculate the wavelength of an electron (m = 9.11 × 10^-28 g)moving at 3.66 × 10⁶ m/s.

What total energy (in kJ)is contained in 1.0 mol of photons,all with a frequency of 2.75 × 10¹⁴ Hz?

Calculate the wavelength (in nm)of the light emitted by a neon sign with a frequency of 4.60 × 10¹⁴ Hz.