Question 1

Only one set of quantum numbers listed below is a correct set. Which one?
(n, l , m  l , ms)

Accepted Answer

A)  3, 2, 0, 1/2 
B)  2, 2, - 2, 1/2 
C)  3, 3, - 3, 1/2 
D)  4, 4, - 3, 1/2 
E)  none of these 
A)  3, 2, 0, 1/2 
B)  2, 2, - 2, 1/2 
C)  3, 3, - 3, 1/2 
D)  4, 4, - 3, 1/2 
E)  none of these

Question 2

How many electrons can be placed in the subshell described by the quantum numbers n = 3,   = 1?

Accepted Answer

A)  1 
B)  2 
C)  10 
D)  6 
E)  none of these 
A)  1 
B)  2 
C)  10 
D)  6 
E)  none of these

Question 3

What is the wavelength of light with a frequency of 8.2×1013 s - 1?

Accepted Answer

A)  2.8×10 - 5 m 
B)  7.2×10 - 7 m 
C)  4.8×10 - 7 m 
D)  3.7×10 - 6 m 
E)  none of these 
A)  2.8×10 - 5 m 
B)  7.2×10 - 7 m 
C)  4.8×10 - 7 m 
D)  3.7×10 - 6 m 
E)  none of these

Question 4

The number of wave crests that pass a fixed point each second is known as the ____ of the wave.

Accepted Answer

A)  frequency 
B)  wave amplitude 
C)  wavelength 
D)  velocity 
E)  none of these 
A)  frequency 
B)  wave amplitude 
C)  wavelength 
D)  velocity 
E)  none of these

Question 5

The energy of the electron in the hydrogen atom depends on the quantum number(s)

Accepted Answer

A)  n only 
B)  n and   
C)    and   
D)    only 
E)  n,   and   
A)  n only 
B)  n and   
C)    and   
D)    only 
E)  n,   and

Question 6

How many possible orientations are allowed when   = 1?
(p-type sublevel; How many possible   values are possible?)

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  5 
E)  7 
A)  1 
B)  2 
C)  3 
D)  5 
E)  7

Question 7

The quantum number   for a 3d electron is:

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  none of these 
A)  1 
B)  2 
C)  3 
D)  4 
E)  none of these

Question 8

According to the Bohr model for a hydrogen atom, the lines on the hydrogen emission spectrum are related to what type of energy change?

Accepted Answer

A)  Electronic transitions from a higher energy state to a lower energy state. 
B)  Electronic transitions from a lower to a higher energy state. 
C)  The amount of energy released during high speed collisions of hydrogen molecules. 
D)  The amount of energy released when hydrogen molecules are split into hydrogen atoms during an electrical discharge in a vacuum tube. 
E)  None of these. 
A)  Electronic transitions from a higher energy state to a lower energy state. 
B)  Electronic transitions from a lower to a higher energy state. 
C)  The amount of energy released during high speed collisions of hydrogen molecules. 
D)  The amount of energy released when hydrogen molecules are split into hydrogen atoms during an electrical discharge in a vacuum tube. 
E)  None of these.

Question 9

Calculate the wavelength of light emitted when an electron in a hydrogen atom falls from the n = 4 orbit to the n = 1 orbit (Rh = 1.1×107 m - 1).

Accepted Answer

A)  9.7×10 - 8 m 
B)  6.5×10 - 7 m 
C)  3.6×10 - 7 m 
D)  6.4×10 - 6 m 
E)  none of these 
A)  9.7×10 - 8 m 
B)  6.5×10 - 7 m 
C)  3.6×10 - 7 m 
D)  6.4×10 - 6 m 
E)  none of these

Question 10

Given the three statements below, which answer is best?
I. Although the wavelength of light and the frequency of light can change, the energy remains constant.
II. An important consequence of quantum theory is that the energy of various electronic states for atoms are at fixed discrete levels.
III. The energy of an electronic state for a hydrogen atom is dependent only on the principal quantum number n.

Accepted Answer

A)  I and II are true, III is false 
B)  II and III are true, I is false 
C)  I and III are true, II is false 
D)  all are true 
E)  all are false 
A)  I and II are true, III is false 
B)  II and III are true, I is false 
C)  I and III are true, II is false 
D)  all are true 
E)  all are false

Question 11

Three sets of quantum numbers are listed below. Pick the best answer.
I. n = 3,   = 3,   = 2
II. n = 4,   = 2,   = 0
III. n = 1,   = 0,   = 0

Accepted Answer

A)  I and II are allowed sets, III is not 
B)  only III is an allowed set 
C)  II and III are allowed sets, I is not 
D)  all three sets are allowed 
E)  only II is an allowed set 
A)  I and II are allowed sets, III is not 
B)  only III is an allowed set 
C)  II and III are allowed sets, I is not 
D)  all three sets are allowed 
E)  only II is an allowed set

Question 12

Given the three statements below, pick the best answer.
I. c = ln
II. E = h n
III. heating gaseous Li atoms yields white light

Accepted Answer

A)  II and III are true, I is false 
B)  I and II are true, III is false 
C)  I and III are true, II is false 
D)  all three are true 
E)  only I is true 
A)  II and III are true, I is false 
B)  I and II are true, III is false 
C)  I and III are true, II is false 
D)  all three are true 
E)  only I is true

Question 13

Which orbital diagram for the ground state electronic configuration of an oxygen atom is correct?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 14

Which set(s) of three quantum numbers is(are) permissible?
I. n = 2,   = 1, and   = 1
II. n = 4,   = 2, and   = - 2
III. n = 3,   = 3, and   = 0

Accepted Answer

A)  I only 
B)  II only 
C)  III only 
D)  I and II 
E)  All of these. 
A)  I only 
B)  II only 
C)  III only 
D)  I and II 
E)  All of these.

Question 15

Exhibit 7-1 Consider the shapes listed below to answer the following question(s):
I.  
II.  
III.  
IV.  
V.  
-Refer to Exhibit 7-1. Which of the shapes would represent one of three possible 2p atomic orbitals?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  V 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  V

Question 16

Which full set of four quantum numbers would be expected for the highest energy electron for a potassium atom?

Accepted Answer

A)  n = 4,   = 0,   = 0, m s = +1/2 
B)  n = 4,   = 1,   = 1, m s = +1/2 
C)  n = 4,   = 2,   = 2, m s = +1/2 
D)  n = 3,   = 1,   = 1, m s = +1/2 
E)  n = 3,   = 2,   = 2, m s = +1/2 
A)  n = 4,   = 0,   = 0, m s = +1/2 
B)  n = 4,   = 1,   = 1, m s = +1/2 
C)  n = 4,   = 2,   = 2, m s = +1/2 
D)  n = 3,   = 1,   = 1, m s = +1/2 
E)  n = 3,   = 2,   = 2, m s = +1/2

Question 17

From the restrictions on the three quantum numbers that define an orbital, which set of three quantum numbers listed below is forbidden?

Accepted Answer

A)  n = 4,   = 3,   = - 2 
B)  n = 4,   = 2,   = - 2 
C)  n = 4,   = 3,   = 3 
D)  n = 4,   = 4,   = - 2 
E)  n = 4,   = 1,   = 1 
A)  n = 4,   = 3,   = - 2 
B)  n = 4,   = 2,   = - 2 
C)  n = 4,   = 3,   = 3 
D)  n = 4,   = 4,   = - 2 
E)  n = 4,   = 1,   = 1

Question 18

What is the ground state electron configuration of boron?

Accepted Answer

A)  1s22s22p3 
B)  1s22s22p2 
C)  1s22s22p1 
D)  1s22s23s1 
E)  none of these 
A)  1s22s22p3 
B)  1s22s22p2 
C)  1s22s22p1 
D)  1s22s23s1 
E)  none of these

Question 19

What is the correct electronic configuration for the element Manganese (Z = 25)?

Accepted Answer

A)  [Ar]3d7 
B)  1s22s22p63s23p63d54s2 
C)  1s22s22p63s23p63d7 
D)  1s22s22p63s23p64s23d5 
E)  [Kr]3d7 
A)  [Ar]3d7 
B)  1s22s22p63s23p63d54s2 
C)  1s22s22p63s23p63d7 
D)  1s22s22p63s23p64s23d5 
E)  [Kr]3d7

Question 20

What is the order for filling the following atomic subshells?
(Lowest energy to highest energy) 4f, 5p, 5d, 6s

Accepted Answer

A)  4f < 5p < 5d < 6s 
B)  6s < 5p < 5d < 4f 
C)  6s < 5d < 5p < 4f 
D)  4f < 5d < 5p < 6s 
E)  5p < 6s < 4f < 5d 
A)  4f < 5p < 5d < 6s 
B)  6s < 5p < 5d < 4f 
C)  6s < 5d < 5p < 4f 
D)  4f < 5d < 5p < 6s 
E)  5p < 6s < 4f < 5d

Exam 7: Electronic Structure

Only one set of quantum numbers listed below is a correct set. Which one? (n, l , m l , ms)

How many electrons can be placed in the subshell described by the quantum numbers n = 3, = 1?

What is the wavelength of light with a frequency of 8.2×1013 s - 1?

The number of wave crests that pass a fixed point each second is known as the ____ of the wave.

The energy of the electron in the hydrogen atom depends on the quantum number(s)

How many possible orientations are allowed when = 1? (p-type sublevel; How many possible values are possible?)

The quantum number for a 3d electron is:

According to the Bohr model for a hydrogen atom, the lines on the hydrogen emission spectrum are related to what type of energy change?

Calculate the wavelength of light emitted when an electron in a hydrogen atom falls from the n = 4 orbit to the n = 1 orbit (Rh = 1.1×107 m - 1).

Three sets of quantum numbers are listed below. Pick the best answer. I. n = 3, = 3, = 2 II. n = 4, = 2, = 0 III. n = 1, = 0, = 0

Given the three statements below, pick the best answer. I. c = ln II. E = h n III. heating gaseous Li atoms yields white light

Which orbital diagram for the ground state electronic configuration of an oxygen atom is correct?

Which set(s) of three quantum numbers is(are) permissible? I. n = 2, = 1, and = 1 II. n = 4, = 2, and = - 2 III. n = 3, = 3, and = 0

Exhibit 7-1 Consider the shapes listed below to answer the following question(s): I. II. III. IV. V. -Refer to Exhibit 7-1. Which of the shapes would represent one of three possible 2p atomic orbitals?

Which full set of four quantum numbers would be expected for the highest energy electron for a potassium atom?

From the restrictions on the three quantum numbers that define an orbital, which set of three quantum numbers listed below is forbidden?

What is the ground state electron configuration of boron?

What is the correct electronic configuration for the element Manganese (Z = 25)?

What is the order for filling the following atomic subshells? (Lowest energy to highest energy) 4f, 5p, 5d, 6s

Introduction to Chemistry

Atoms, Molecules, and Ions

Equations, the Mole, and Chemical Formulas

Chemical Reactions in Solution

Thermochemistry

The Gaseous State

The Periodic Table: Structure and Trends

Chemical Bonds

Molecular Structure and Bonding Theories

Liquids and Solids

Solutions

Chemical Kinetics

Chemical Equilibrium

Solutions of Acids and Bases

Reactions Between Acids and Bases

Chemical Thermodynamics

Electrochemistry

Transition Metals, Coordination Chemistry and Metallurgy

The Chemistry of Hydrogen, Elements in Groups 3A Through 6A, and the Noble Gases

Nuclear Chemistry

Organic Chemistry and Biochemistry

Filters

Only one set of quantum numbers listed below is a correct set. Which one? (n, l , m _l , m_s)

What is the wavelength of light with a frequency of 8.2×10¹³ s^{- 1}?

Calculate the wavelength of light emitted when an electron in a hydrogen atom falls from the n = 4 orbit to the n = 1 orbit (R_h = 1.1×10⁷ m^{- 1}).