Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

Si4+ is isoelectronic with which of the following?

Accepted Answer

A) K+  
B) Ne  
C) Kr 
D) Cl- 
E) Sr2+  
A) K+  
B) Ne  
C) Kr 
D) Cl- 
E) Sr2+

Question 3

Because of fluorine's high electronegativity,less energy is required to make F2F1F1F1S1F1F1F10 from FF1F1F1S1F1F1F10 than to make O2F1F1F1S1F1F1F10 from OF1F1F1S1F1F1F10.True or false?

Accepted Answer

A) True 
 B)False

Question 4

What is the l corresponding to the outermost p electrons in sulfur?

Accepted Answer

A) l = 0 
B) l = 1 
C) l = 2 
D) l = 3 
E) l = 4 
A) l = 0 
B) l = 1 
C) l = 2 
D) l = 3 
E) l = 4

Question 5

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 6

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 7

When an electron is added to a gaseous chlorine atom,349 kJF1F1F1S1F1F1F10molF1F1F1S1F1F1F101 of energy is released.What is the ionization energy of a gaseous chloride ion?

Accepted Answer

+349 kJF1F

Question 8

Where is the nodal plane in a 1s orbital?

Accepted Answer

A) Along the x-axis. 
B) Along the y-axis. 
C) Along the z-axis. 
D) Mid-way between the x and y-axes. 
E) There is none. 
A) Along the x-axis. 
B) Along the y-axis. 
C) Along the z-axis. 
D) Mid-way between the x and y-axes. 
E) There is none.

Question 9

How many nodal planes are expected for 2s and 4f orbitals,respectively?

Accepted Answer

A) 0 and 4 
B) 0 and 3 
C) 2 and 4 
D) 1 and 4 
E) 1 and 3 
A) 0 and 4 
B) 0 and 3 
C) 2 and 4 
D) 1 and 4 
E) 1 and 3

Question 10

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 11

Write the ground-state electron configuration of a tin(IV)ion.

Accepted Answer

A) [Kr]4d35s15p6  
B) [Kr]4d45p6  
C) [Kr]4d55s25p3  
D) [Kr]4d55p5  
E) [Kr]4d10  
A) [Kr]4d35s15p6  
B) [Kr]4d45p6  
C) [Kr]4d55s25p3  
D) [Kr]4d55p5  
E) [Kr]4d10

Question 12

What are the subshell notation and the number of orbitals having the quantum numbers n = 4,l = 3?

Accepted Answer

A) 4d and 5 
B) 4p and 3 
C) 3f and 7 
D) 3d and 5 
E) 4f and 7 
A) 4d and 5 
B) 4p and 3 
C) 3f and 7 
D) 3d and 5 
E) 4f and 7

Question 13

How many unpaired electrons are in a calcium atom?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 5 
A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Question 14

Which of the following subshells cannot exist in an atom?

Accepted Answer

A) 4d 
B) 5g 
C) 5f 
D) 4f 
E) 3f 
A) 4d 
B) 5g 
C) 5f 
D) 4f 
E) 3f

Question 15

Consider the following ground-state electronic configurations.Which atom has the highest electron affinity?

Accepted Answer

A) [He] 2s22p5 
B) [He] 2s22p3 
C) [He] 2s22p1 
D) [He] 2s22p4 
A) [He] 2s22p5 
B) [He] 2s22p3 
C) [He] 2s22p1 
D) [He] 2s22p4

Question 16

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 17

What is the inert-pair effect?

Accepted Answer

The inert-pair effect is the t

Question 18

How many nodal planes are present in an f-orbital?

Accepted Answer

A) 2 
B) 3 
C) 7 
D) 4 
E) 5 
A) 2 
B) 3 
C) 7 
D) 4 
E) 5

Question 19

Which atom has the highest first ionization energy?

Accepted Answer

A) Mg 
B) Ca 
C) Sr 
D) Ba 
A) Mg 
B) Ca 
C) Sr 
D) Ba

Question 20

How many unpaired electrons are in a chromium atom?

Accepted Answer

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

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

Si⁴⁺ is isoelectronic with which of the following?

Because of fluorine's high electronegativity,less energy is required to make F²^ from F^ than to make O²^ from O^.True or false?

What is the l corresponding to the outermost p electrons in sulfur?

An aluminum atom contains how many unpaired electrons?

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

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?

Where is the nodal plane in a 1s orbital?

How many nodal planes are expected for 2s and 4f orbitals,respectively?

Which of the following statements is true?

Write the ground-state electron configuration of a tin(IV)ion.

What are the subshell notation and the number of orbitals having the quantum numbers n = 4,l = 3?

How many unpaired electrons are in a calcium atom?

Which of the following subshells cannot exist in an atom?

Consider the following ground-state electronic configurations.Which atom has the highest electron affinity?

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

What is the inert-pair effect?

How many nodal planes are present in an f-orbital?

Which atom has the highest first ionization energy?

How many unpaired electrons are in a chromium atom?

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

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

Si4+ is isoelectronic with which of the following?

Because of fluorine's high electronegativity,less energy is required to make F2 from F than to make O2 from O.True or false?

What is the l corresponding to the outermost p electrons in sulfur?

An aluminum atom contains how many unpaired electrons?

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

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?

Where is the nodal plane in a 1s orbital?

How many nodal planes are expected for 2s and 4f orbitals,respectively?

Which of the following statements is true?

Write the ground-state electron configuration of a tin(IV)ion.

What are the subshell notation and the number of orbitals having the quantum numbers n = 4,l = 3?

How many unpaired electrons are in a calcium atom?

Which of the following subshells cannot exist in an atom?

Consider the following ground-state electronic configurations.Which atom has the highest electron affinity?

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

What is the inert-pair effect?

How many nodal planes are present in an f-orbital?

Which atom has the highest first ionization energy?

How many unpaired electrons are in a chromium atom?

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

Si⁴⁺ is isoelectronic with which of the following?

Because of fluorine's high electronegativity,less energy is required to make F²^ from F^ than to make O²^ from O^.True or false?

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?