Question 1

Which orbital-filling diagram represents the ground state of oxygen?

Accepted Answer

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

Question 2

The spheres below represent atoms of Li,Be,B,and F (not necessarily in that order).  
-Which one of these spheres represents an atom of B?

Accepted Answer

A) sphere (a) 
B) sphere (b) 
C) sphere (c) 
D) sphere (d) 
A) sphere (a) 
B) sphere (b) 
C) sphere (c) 
D) sphere (d)

Question 3

-Atoms of which element,indicated by letter on the periodic table,is expected to have the smallest atomic radius?

Accepted Answer

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

Question 4

According to the Balmer-Rydberg equation,which transition results in the emission of a photon in the ultraviolet region of the electromagnetic radiation spectrum?

Accepted Answer

A) m = 1 → n = 2 
B) m = 3 → n = 4 
C) m = 2 → n = 1 
D) m = 4 → n = 3 
A) m = 1 → n = 2 
B) m = 3 → n = 4 
C) m = 2 → n = 1 
D) m = 4 → n = 3

Question 5

What is the de Broglie wavelength of an electron (m = 9.11 × 10-31 kg)moving at a velocity of   (10% of the speed of light)?

Accepted Answer

A) less than 3.9 × 10-12 m 
B) 2.4 × 10-11 m 
C) 3.3 × 10-8 m 
D) greater than 1.1 × 10-4 m 
A) less than 3.9 × 10-12 m 
B) 2.4 × 10-11 m 
C) 3.3 × 10-8 m 
D) greater than 1.1 × 10-4 m

Question 6

What are the possible values of l if n = 3?

Accepted Answer

A) 3 
B) 0,1,or 2 
C) -4,-3,-2,-1,0,+1,+2,+3,or +4 
D) -5,-4,-3,-2,-1,0,+1,+2,+3,+4,or +5 
A) 3 
B) 0,1,or 2 
C) -4,-3,-2,-1,0,+1,+2,+3,or +4 
D) -5,-4,-3,-2,-1,0,+1,+2,+3,+4,or +5

Question 7

What is the deBroglie wavelength in meters of a 1-ton (907 kg)vehicle having a velocity of 95 km/hr?

Accepted Answer

The answer of What is the deBroglie wavelength in meters...

Question 8

Molecular vibrational energy transitions are observed in the infrared,molecular rotational transitions in the microwave,and electronic transitions in the ultraviolet-visible range.Which transitions require the most energy and which the least energy?

Accepted Answer

A) Electronic transitions require the least energy and vibrational transitions the most. 
B) Rotational transitions require the least energy and electronic transitions the most. 
C) Vibrational transitions require the least energy and electronic transitions the most. 
D) Vibrational transitions require the least energy and rotational transitions the most. 
A) Electronic transitions require the least energy and vibrational transitions the most. 
B) Rotational transitions require the least energy and electronic transitions the most. 
C) Vibrational transitions require the least energy and electronic transitions the most. 
D) Vibrational transitions require the least energy and rotational transitions the most.

Question 9

What is the ground-state valence-shell electron configuration of the group of elements indicated by the shaded portion of the periodic table?

Accepted Answer

A) ns2 
B) ns2np2 
C) ns2(n-1)d2 
D) ns2(n-2)f2 
A) ns2 
B) ns2np2 
C) ns2(n-1)d2 
D) ns2(n-2)f2

Question 10

Light behaves as if it were a stream of small particles,called ________,each having an amount of energy called a ________.

Accepted Answer

The answer of Light behaves as if it were a...

Question 11

Which orbital-filling diagram represents the ground state of vanadium?

Accepted Answer

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

Question 12

The spheres below represent atoms of Sb,As,P,and N (not necessarily in that order).  
-Which one of these spheres represents an atom of Sb?

Accepted Answer

A) sphere (a) 
B) sphere (b) 
C) sphere (c) 
D) sphere (d) 
A) sphere (a) 
B) sphere (b) 
C) sphere (c) 
D) sphere (d)

Question 13

The spheres below represent atoms of Sb,As,P,and N (not necessarily in that order).  
-Which one of these spheres represents an atom of N?

Accepted Answer

A) sphere (a) 
B) sphere (b) 
C) sphere (c) 
D) sphere (d) 
A) sphere (a) 
B) sphere (b) 
C) sphere (c) 
D) sphere (d)

Question 14

Which atom in each group (I and II)has the smallest atomic radius? (I)Rb,Zr,I (II)Sb,N,As

Accepted Answer

A) Rb;Sb 
B) Rb;As 
C) Te;Sb 
D) Te;As 
A) Rb;Sb 
B) Rb;As 
C) Te;Sb 
D) Te;As

Question 15

According to the Balmer-Rydberg equation,electromagnetic radiation with the shortest wavelength will be emitted when an electron undergoes which of the following transitions?

Accepted Answer

A) m = 1 → n = 2 
B) m = 2 → n = 3 
C) n = 2 → m = 1 
D) n = 3 → m = 2 
A) m = 1 → n = 2 
B) m = 2 → n = 3 
C) n = 2 → m = 1 
D) n = 3 → m = 2

Question 16

How many h orbitals are allowed in a given shell?

Accepted Answer

A) 5 
B) 6 
C) 11 
D) 13 
A) 5 
B) 6 
C) 11 
D) 13

Question 17

Which orbital-filling diagram violates the Pauli exclusion principle?

Accepted Answer

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

Question 18

Which has the highest Zeff for its valence electrons?

Accepted Answer

A) Na 
B) Mg 
C) Si 
D) Cl 
A) Na 
B) Mg 
C) Si 
D) Cl

Question 19

Which element has the ground-state electron configuration [Xe]6s25f4?

Accepted Answer

A) Pr 
B) Nd 
C) Pm 
D) Sm 
A) Pr 
B) Nd 
C) Pm 
D) Sm

Question 20

-Which of the above fourth-shell orbitals is a 4pz orbital?

Accepted Answer

A) orbital (a) 
B) orbital (b) 
C) orbital (c) 
D) orbital (d) 
A) orbital (a) 
B) orbital (b) 
C) orbital (c) 
D) orbital (d)

Exam 5: Periodicity and the Electronic Structure of Atoms

Which orbital-filling diagram represents the ground state of oxygen?

The spheres below represent atoms of Li,Be,B,and F (not necessarily in that order). -Which one of these spheres represents an atom of B?

-Atoms of which element,indicated by letter on the periodic table,is expected to have the smallest atomic radius?

According to the Balmer-Rydberg equation,which transition results in the emission of a photon in the ultraviolet region of the electromagnetic radiation spectrum?

What is the de Broglie wavelength of an electron (m = 9.11 × 10-31 kg)moving at a velocity of (10% of the speed of light)?

What are the possible values of l if n = 3?

What is the deBroglie wavelength in meters of a 1-ton (907 kg)vehicle having a velocity of 95 km/hr?

Molecular vibrational energy transitions are observed in the infrared,molecular rotational transitions in the microwave,and electronic transitions in the ultraviolet-visible range.Which transitions require the most energy and which the least energy?

What is the ground-state valence-shell electron configuration of the group of elements indicated by the shaded portion of the periodic table?

Light behaves as if it were a stream of small particles,called ________,each having an amount of energy called a ________.

Which orbital-filling diagram represents the ground state of vanadium?

The spheres below represent atoms of Sb,As,P,and N (not necessarily in that order). -Which one of these spheres represents an atom of Sb?

The spheres below represent atoms of Sb,As,P,and N (not necessarily in that order). -Which one of these spheres represents an atom of N?

Which atom in each group (I and II)has the smallest atomic radius? (I)Rb,Zr,I (II)Sb,N,As

According to the Balmer-Rydberg equation,electromagnetic radiation with the shortest wavelength will be emitted when an electron undergoes which of the following transitions?

How many h orbitals are allowed in a given shell?

Which orbital-filling diagram violates the Pauli exclusion principle?

Which has the highest Zeff for its valence electrons?

Which element has the ground-state electron configuration [Xe]6s25f4?

-Which of the above fourth-shell orbitals is a 4pz orbital?

Chemical Tools: Experimentation and Measurement

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Ionic Compounds: Periodic Trends and Bonding

Covalent Bonding and Electron-Dot Structures

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Thermochemistry: Chemical Energy

Gases: Their Properties and Behavior

Liquids, solids, and Phase Changes

Solutions and Their Properties

Chemical Kinetics

Chemical Equilibrium

Aqueous Equilibria: Acids and Bases

Applications of Aqueous Equilibria

Thermodynamics: Entropy, free Energy, and Equilibrium

Electrochemistry

Nuclear Chemistry

Transition Elements and Coordination Chemistry

Metals and Solid-State Materials

The Main-Group Elements

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Filters

What is the de Broglie wavelength of an electron (m = 9.11 × 10^-31 kg)moving at a velocity of (10% of the speed of light)?

Light behaves as if it were a stream of small particles,called ,each having an amount of energy called a .

Which has the highest Z_eff for its valence electrons?

Which element has the ground-state electron configuration [Xe]6s²5f⁴?

-Which of the above fourth-shell orbitals is a 4p_z orbital?