Question 1

Which of the following statements is true?

Accepted Answer

A) The s orbital is spherical. 
B) The s orbital has no nodal planes. 
C) The s orbital is symmetrical. 
D) The s orbital is associated with the l quantum number 0. 
E) All of the above. 
A) The s orbital is spherical. 
B) The s orbital has no nodal planes. 
C) The s orbital is symmetrical. 
D) The s orbital is associated with the l quantum number 0. 
E) All of the above. E

Question 2

All the following are diatomic gases except

Accepted Answer

A) Hydrogen. 
B) Fluorine. 
C) Oxygen. 
D) Neon. 
E) Nitrogen. 
A) Hydrogen. 
B) Fluorine. 
C) Oxygen. 
D) Neon. 
E) Nitrogen. D

Question 3

Which orbitals have the greatest number of nodes?

Accepted Answer

A) The s orbitals. 
B) The p orbitals. 
C) The d orbitals. 
D) The f orbitals. 
E) All orbitals have the same number of nodes. 
A) The s orbitals. 
B) The p orbitals. 
C) The d orbitals. 
D) The f orbitals. 
E) All orbitals have the same number of nodes. D

Question 4

When an electron is added to a gaseous chlorine atom,349 kJ.mol-1 of energy is released.What is the ionization energy of a gaseous chloride ion?

Accepted Answer

+349 kJ.mo

Question 5

What shape do the p-orbitals have that each accommodates one nodal plane?

Accepted Answer

A) A spherical shape. 
B) A dumbbell shape centered at the nucleus. 
C) A clover leaf shape centered at the nucleus. 
D) A clover leaf shape centered above and below the nucleus. 
E) A toroidal shape around a dumbbell. 
A) A spherical shape. 
B) A dumbbell shape centered at the nucleus. 
C) A clover leaf shape centered at the nucleus. 
D) A clover leaf shape centered above and below the nucleus. 
E) A toroidal shape around a dumbbell.

Question 6

Which of the following pairs of elements has members with similar properties?

Accepted Answer

A) B and Si 
B) Li and Be 
C) Mg and Al 
D) Na and Ca 
E) Se and I 
A) B and Si 
B) Li and Be 
C) Mg and Al 
D) Na and Ca 
E) Se and I

Question 7

How many unpaired electrons are in a chromium trivalent ion?

Accepted Answer

A) 0 
B) 5 
C) 6 
D) 4 
E) 3 
A) 0 
B) 5 
C) 6 
D) 4 
E) 3

Question 8

How many total nodal planes are present in the 3d-orbitals?

Accepted Answer

A) 15 
B) 0 
C) 5 
D) 20 
E) 10 
A) 15 
B) 0 
C) 5 
D) 20 
E) 10

Question 9

Which of the following is likely to form ions two units lower in charge than expected from the group number?

Accepted Answer

A) Tl 
B) Hg 
C) Zn 
D) Se 
E) Cd 
A) Tl 
B) Hg 
C) Zn 
D) Se 
E) Cd

Question 10

Write the ground-state electron configuration of a lead atom.

Accepted Answer

A) [Xe]4f145d56s16p67s2  
B) [Xe]4f145d106s26p2  
C) [Xe]4f145d106s16p3  
D) [Xe]4f145d106p4  
E) [Xe]4f145d96s26p3  
A) [Xe]4f145d56s16p67s2  
B) [Xe]4f145d106s26p2  
C) [Xe]4f145d106s16p3  
D) [Xe]4f145d106p4  
E) [Xe]4f145d96s26p3

Question 11

Which of the following has the largest radius?

Accepted Answer

A) N3− 
B) F- 
C) H+ 
D) He 
E) O2− 
A) N3− 
B) F- 
C) H+ 
D) He 
E) O2−

Question 12

An aluminum atom contains how many unpaired electrons?

Accepted Answer

A) 7 
B) 6 
C) 5 
D) 4 
E) 3 
A) 7 
B) 6 
C) 5 
D) 4 
E) 3

Question 13

All the following are transition metals except:

Accepted Answer

A) Cd. 
B) Cu. 
C) Pd. 
D) Pb. 
E) Ag. 
A) Cd. 
B) Cu. 
C) Pd. 
D) Pb. 
E) Ag.

Question 14

Which of the following statements is true?

Accepted Answer

A) A 2s orbital has one nodal plane. 
B) An electron in a p-orbital has zero probability of being found at the nucleus. 
C) A p-orbital has a spherical boundary surface. 
D) An s-orbital becomes more dense as the distance from the nucleus increases. 
E) An electron in an s-orbital has a zero probability of being found at the nucleus. 
A) A 2s orbital has one nodal plane. 
B) An electron in a p-orbital has zero probability of being found at the nucleus. 
C) A p-orbital has a spherical boundary surface. 
D) An s-orbital becomes more dense as the distance from the nucleus increases. 
E) An electron in an s-orbital has a zero probability of being found at the nucleus.

Question 15

Which set of orbitals encompass two shapes?

Accepted Answer

A) The s orbitals. 
B) The p orbitals. 
C) The d orbitals. 
D) Both B and C,above. 
E) Both A and C,above. 
A) The s orbitals. 
B) The p orbitals. 
C) The d orbitals. 
D) Both B and C,above. 
E) Both A and C,above.

Question 16

Which set of quantum numbers,n,l,ml,could correspond to one of the highest energy electrons in Zr?

Accepted Answer

A) 4,2,-2 
B) 4,2,+3 
C) 3,2,-2 
D) 4,3,-2 
A) 4,2,-2 
B) 4,2,+3 
C) 3,2,-2 
D) 4,3,-2

Question 17

Consider the following ground-state electronic configurations.Which atom has both the highest first ionization energy and the highest electron affinity?

Accepted Answer

A) [Ne] 3s23p5 
B) [Ne] 3s23p3 
C) [Ne] 3s23p1 
D) [Ne] 3s23p4 
A) [Ne] 3s23p5 
B) [Ne] 3s23p3 
C) [Ne] 3s23p1 
D) [Ne] 3s23p4

Question 18

How many f electrons are in a gadolinium atom?

Accepted Answer

A) 7 
B) 6 
C) 5 
D) 4 
E) 3 
A) 7 
B) 6 
C) 5 
D) 4 
E) 3

Question 19

The three quantum numbers for an electron in a hydrogen atom in a certain state are n = 4,l = 2,ml = 1.The electron is located in what type of orbital?

Accepted Answer

A) 4p 
B) 3p 
C) 4s 
D) 4d 
E) 3d 
A) 4p 
B) 3p 
C) 4s 
D) 4d 
E) 3d

Question 20

Nodal planes in orbitals can be accounted for by the wavelike behavior of electrons.

Accepted Answer

A) True 
 B)False

Which of the following statements is true?

All the following are diatomic gases except

Which orbitals have the greatest number of nodes?

When an electron is added to a gaseous chlorine atom,349 kJ.mol^-¹ of energy is released.What is the ionization energy of a gaseous chloride ion?

What shape do the p-orbitals have that each accommodates one nodal plane?

Which of the following pairs of elements has members with similar properties?

How many unpaired electrons are in a chromium trivalent ion?

How many total nodal planes are present in the 3d-orbitals?

Which of the following is likely to form ions two units lower in charge than expected from the group number?

Write the ground-state electron configuration of a lead atom.

Which of the following has the largest radius?

An aluminum atom contains how many unpaired electrons?

All the following are transition metals except:

Which of the following statements is true?

Which set of orbitals encompass two shapes?

Which set of quantum numbers,n,l,m_l,could correspond to one of the highest energy electrons in Zr?

Consider the following ground-state electronic configurations.Which atom has both the highest first ionization energy and the highest electron affinity?

How many f electrons are in a gadolinium atom?

The three quantum numbers for an electron in a hydrogen atom in a certain state are n = 4,l = 2,m_l = 1.The electron is located in what type of orbital?

Nodal planes in orbitals can be accounted for by the wavelike behavior of electrons.

The Quantum World

Chemical Bonds

Molecular Shape and Structure

The Properties of Gases

Liquids and Solids

Inorganic Materials

Thermodynamics: The First Law

Thermodynamics: The Second and Third Laws

Physical Equilibria

Chemical Equilibria

Acids and Bases

Aqueous Equilibria

Electrochemistry

Chemical Kinetics

The Elements: the Main Group Elements

The Elements: The D Block

Nuclear Chemistry

Organic Chemistry I

Organic Chemistry II

Filters

Exam 2: Quantum Mechanics in Action: Atoms

Which of the following statements is true?

All the following are diatomic gases except

Which orbitals have the greatest number of nodes?

When an electron is added to a gaseous chlorine atom,349 kJ.mol-1 of energy is released.What is the ionization energy of a gaseous chloride ion?

What shape do the p-orbitals have that each accommodates one nodal plane?

Which of the following pairs of elements has members with similar properties?

How many unpaired electrons are in a chromium trivalent ion?

How many total nodal planes are present in the 3d-orbitals?

Which of the following is likely to form ions two units lower in charge than expected from the group number?

Write the ground-state electron configuration of a lead atom.

Which of the following has the largest radius?

An aluminum atom contains how many unpaired electrons?

All the following are transition metals except:

Which of the following statements is true?

Which set of orbitals encompass two shapes?

Which set of quantum numbers,n,l,ml,could correspond to one of the highest energy electrons in Zr?

Consider the following ground-state electronic configurations.Which atom has both the highest first ionization energy and the highest electron affinity?

How many f electrons are in a gadolinium atom?

The three quantum numbers for an electron in a hydrogen atom in a certain state are n = 4,l = 2,ml = 1.The electron is located in what type of orbital?

Nodal planes in orbitals can be accounted for by the wavelike behavior of electrons.

The Quantum World

Chemical Bonds

Molecular Shape and Structure

The Properties of Gases

Liquids and Solids

Inorganic Materials

Thermodynamics: The First Law

Thermodynamics: The Second and Third Laws

Physical Equilibria

Chemical Equilibria

Acids and Bases

Aqueous Equilibria

Electrochemistry

Chemical Kinetics

The Elements: the Main Group Elements

The Elements: The D Block

Nuclear Chemistry

Organic Chemistry I

Organic Chemistry II

Filters

When an electron is added to a gaseous chlorine atom,349 kJ.mol^-¹ of energy is released.What is the ionization energy of a gaseous chloride ion?

Which set of quantum numbers,n,l,m_l,could correspond to one of the highest energy electrons in Zr?

The three quantum numbers for an electron in a hydrogen atom in a certain state are n = 4,l = 2,m_l = 1.The electron is located in what type of orbital?