Question 1

What is the maximum number of electrons that can occupy the n = 1 shell?

Accepted Answer

A)  2 
B)  8 
C)  18 
D)  32 
E)  50 
A)  2 
B)  8 
C)  18 
D)  32 
E)  50

Question 2

The ground-state electron configuration of a   .Therefore,    Is

Accepted Answer

A)  paramagnetic with four unpaired electrons. 
B)  diamagnetic. 
C)  paramagnetic with one unpaired electron. 
D)  paramagnetic with three unpaired electrons. 
E)  paramagnetic with two unpaired electrons. 
A)  paramagnetic with four unpaired electrons. 
B)  diamagnetic. 
C)  paramagnetic with one unpaired electron. 
D)  paramagnetic with three unpaired electrons. 
E)  paramagnetic with two unpaired electrons.

Question 3

Which of the following orbital diagrams represent(s)a paramagnetic atom?
1s $~~~~~~~~$$~~ ~~~$2s $~~~~~~~~$2p
1)  
2)  
3)

Accepted Answer

A)  1 only 
B)  2 only 
C)  3 only 
D)  1 and 2 
E)  2 and 3 
A)  1 only 
B)  2 only 
C)  3 only 
D)  1 and 2 
E)  2 and 3

Question 4

Which ground-state electron configuration is $\underline{\text{   incorrect? }}$

Accepted Answer

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

Question 5

How many electrons can be described by the following quantum numbers: n = 5,   = 0,  = 0,ms = -1/2?

Accepted Answer

A)  1 
B)  2 
C)  6 
D)  10 
E)  18 
A)  1 
B)  2 
C)  6 
D)  10 
E)  18

Question 6

Rank the following ions in order of decreasing ionic radii: Rb-,Br-,Te2-,I-.

Accepted Answer

A)  I- > Te2-> Br- > Rb- 
B)  Te2- > I- > Br- > Rb- 
C)  Rb-> Br- > Te2- > I- 
D)  I- > Br- > Te2- > Rb- 
E)  Br- > Te2- > Rb- > I- 
A)  I- > Te2-> Br- > Rb- 
B)  Te2- > I- > Br- > Rb- 
C)  Rb-> Br- > Te2- > I- 
D)  I- > Br- > Te2- > Rb- 
E)  Br- > Te2- > Rb- > I-

Question 7

Which of the following statements concerning the Pauli exclusion principle is/are CORRECT?
1)If two electrons occupy the same orbital they must have opposite spins.
2)No two electrons in an atom can have the same four quantum numbers.
3)Electrons with opposing spins are attracted to each other.

Accepted Answer

A)  1 only 
B)  2 only 
C)  3 only 
D)  1 and 2 
E)  1,2,and 3 
A)  1 only 
B)  2 only 
C)  3 only 
D)  1 and 2 
E)  1,2,and 3

Question 8

If the ground state electron configuration of an element is [Ar]3d104s24p5,what is the typical charge on the monatomic anion of the element?

Accepted Answer

A)  4+ 
B)  2+ 
C)  1- 
D)  2- 
E)  3- 
A)  4+ 
B)  2+ 
C)  1- 
D)  2- 
E)  3-

Question 9

What 2+ ion has the following ground state electron configuration?

Accepted Answer

A)  Mn2+ 
B)  Co2+ 
C)  Ni2+ 
D)  Cu2+ 
E)  Ge2+ 
A)  Mn2+ 
B)  Co2+ 
C)  Ni2+ 
D)  Cu2+ 
E)  Ge2+

Question 10

According to the building-up principle or aufbau principle,which subshell is typically filled next after the 5p subshell?

Accepted Answer

A)  6s 
B)  5d 
C)  3p 
D)  6d 
E)  5f 
A)  6s 
B)  5d 
C)  3p 
D)  6d 
E)  5f

Question 11

The complete electron configuration of tin is

Accepted Answer

A)  1s22s22p63s23p64s23d104p65s24d105p2 
B)  1s22s22p63s23p64s24p65s24d105d105p2 
C)  1s22s22p63s23p64s23d104d104p2 
D)  1s22s22p63s23p64s23d104p65s24d105d105p2 
E)  none of these 
A)  1s22s22p63s23p64s23d104p65s24d105p2 
B)  1s22s22p63s23p64s24p65s24d105d105p2 
C)  1s22s22p63s23p64s23d104d104p2 
D)  1s22s22p63s23p64s23d104p65s24d105d105p2 
E)  none of these

Question 12

What is the ground state electron configuration for Sn2+?

Accepted Answer

A)  [Kr]4d105s2 
B)  [Kr]4d105p2 
C)  [Kr]5s2 
D)  [Kr]4d105s25p2 
E)  [Kr]4d105s25p4 
A)  [Kr]4d105s2 
B)  [Kr]4d105p2 
C)  [Kr]5s2 
D)  [Kr]4d105s25p2 
E)  [Kr]4d105s25p4

Question 13

Which of the following statements is/are CORRECT for an oxygen atom?
1)The effective nuclear charge felt by a 2s electron is greater than that felt by a 1s electron.
2)The effective nuclear charges felt by 2s and 2p electrons are identical.
3)The effective nuclear charge felt by a 2p electron is less than that felt by a 2s electron.

Accepted Answer

A)  1 only 
B)  2 only 
C)  3 only 
D)  1 and 3 
E)  1,2,and 3 
A)  1 only 
B)  2 only 
C)  3 only 
D)  1 and 3 
E)  1,2,and 3

Question 14

Which of the following orbital occupancy designations is $\underline{\text{   incorrect? }}$

Accepted Answer

A)  2s2 
B)  3s2 
C)  1s2 
D)  4d3 
E)  1s6 
A)  2s2 
B)  3s2 
C)  1s2 
D)  4d3 
E)  1s6

Question 15

A metal halide forms when strontium reacts with elemental iodine.What is the most likely formula of this metal halide?

Accepted Answer

A)  SrI 
B)  SrI2 
C)  Sr2I 
D)  SrI3 
E)  Sr3I2 
A)  SrI 
B)  SrI2 
C)  Sr2I 
D)  SrI3 
E)  Sr3I2

Question 16

Which element has the ground state electron configuration [Ar]3d104s1?

Accepted Answer

A)  Cu 
B)  Zn 
C)  Ge 
D)  Ag 
E)  Cd 
A)  Cu 
B)  Zn 
C)  Ge 
D)  Ag 
E)  Cd

Question 17

The element ________ has the following electron configuration: [Rn]5f127s2.

Accepted Answer

Question 18

Which element has the following ground state electron configuration?
$~~~~~~~~$ 3d  $~~~~~~~~$ $~~~~~~~~$ $~~~~~~~~$ $~~~~~~~~$ $~~~~~~~~$ 4s
[Ar]

Accepted Answer

A)  Sc 
B)  Mn 
C)  Co 
D)  Zn 
E)  Fe 
A)  Sc 
B)  Mn 
C)  Co 
D)  Zn 
E)  Fe

Question 19

What is the ground-state electron configuration of the sulfide ion?

Accepted Answer

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

Question 20

The maximum number of electrons that can be accommodated in an s subshell is

Accepted Answer

A)  6. 
B)  14. 
C)  10. 
D)  1. 
E)  2. 
A)  6. 
B)  14. 
C)  10. 
D)  1. 
E)  2.

Exam 8: The Structure of Atoms and Periodic Trends

What is the maximum number of electrons that can occupy the n = 1 shell?

The ground-state electron configuration of a .Therefore, Is

Which of the following orbital diagrams represent(s)a paramagnetic atom? 1s ~~~~~~~~ ~~ ~~~ 2s ~~~~~~~~ 2p 1) 2) 3)

Which ground-state electron configuration is incorrect? ‾\underline{\text{ incorrect? }} incorrect? ​

How many electrons can be described by the following quantum numbers: n = 5, = 0, = 0,ms = -1/2?

Rank the following ions in order of decreasing ionic radii: Rb-,Br-,Te2-,I-.

Which of the following statements concerning the Pauli exclusion principle is/are CORRECT? 1)If two electrons occupy the same orbital they must have opposite spins. 2)No two electrons in an atom can have the same four quantum numbers. 3)Electrons with opposing spins are attracted to each other.

If the ground state electron configuration of an element is [Ar]3d104s24p5,what is the typical charge on the monatomic anion of the element?

What 2+ ion has the following ground state electron configuration?

According to the building-up principle or aufbau principle,which subshell is typically filled next after the 5p subshell?

The complete electron configuration of tin is

What is the ground state electron configuration for Sn2+?

Which of the following orbital occupancy designations is incorrect? ‾\underline{\text{ incorrect? }} incorrect? ​

A metal halide forms when strontium reacts with elemental iodine.What is the most likely formula of this metal halide?

Which element has the ground state electron configuration [Ar]3d104s1?

The element ________ has the following electron configuration: [Rn]5f127s2.

Which element has the following ground state electron configuration? ~~~~~~~~ 3d ~~~~~~~~ ~~~~~~~~ ~~~~~~~~ ~~~~~~~~ ~~~~~~~~ 4s [Ar]

What is the ground-state electron configuration of the sulfide ion?

The maximum number of electrons that can be accommodated in an s subshell is

Basic Concepts of Chemistry

Mathlets Review: The Tools of Quantitative Chemistry

Atoms, molecules, and Ions

Chemical Reactions

Stoichiometry: Quantitative Information About Chemical Reactions

Principles of Chemical Reactivity: Energy and Chemical Reactions

The Structure of Atoms

Bonding and Molecular Structure

Bonding and Molecular Structure: Orbital Hybridization and Molecular Orbitals

Gases and Their Properties

Intermolecular Forces and Liquids

The Chemistry of Solids

Solutions and Their Behavior

Chemical Kinetics: the Rates of Chemical Reactions

Principles of Reactivity: Chemical Equilibria

The Chemistry of Acids and Bases

Principles of Reactivity: Other Aspects of Aqueous Equilibria

Entropy and Free Energy

Principles of Reactivity: Electron Transfer Reactions

Environmental Chemistry Earths Environment,energy,and Sustainability

The Chemistry of the Main Group Elements

The Chemistry of the Transition Elements

Carbon: Not Just Another Element

Biochemistry

Nuclear Chemistry

Filters

Which of the following orbital diagrams represent(s)a paramagnetic atom? 1s $~~~~~~$ $ ~$ 2s $~~~~~~$ 2p 1) 2) 3)

Which ground-state electron configuration is $\underline{\text{ incorrect? }}$

How many electrons can be described by the following quantum numbers: n = 5, = 0, = 0,m_s = -1/2?

Rank the following ions in order of decreasing ionic radii: Rb^-,Br^-,Te^2-,I^-.

If the ground state electron configuration of an element is [Ar]3d¹⁰4s²4p⁵,what is the typical charge on the monatomic anion of the element?

What is the ground state electron configuration for Sn²⁺?

Which of the following orbital occupancy designations is $\underline{\text{ incorrect? }}$

Which element has the ground state electron configuration [Ar]3d¹⁰4s¹?

The element ________ has the following electron configuration: [Rn]5f¹²7s².

Which element has the following ground state electron configuration? $$ 3d $$ $$ $$ $$ $$ 4s [Ar]