Question 1

How many electrons can be described by the quantum numbers n= 3 and l= 2?

Accepted Answer

A)  14 
B)  6 
C)  2 
D)  18 
E)  10 
A)  14 
B)  6 
C)  2 
D)  18 
E)  10 E

Question 2

The ground-state electron configuration of a Ni2+ ion is 1s22s22p63s23p63d8 .Therefore,Ni2+ is

Accepted Answer

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

Question 3

A metal phosphide forms when potassium reacts with elemental phosphorus.What is the most likely formula of this metal phosphide?

Accepted Answer

A)  KP 
B)  K3P 
C)  K2P3 
D)  K3P2 
E)  KP3 
A)  KP 
B)  K3P 
C)  K2P3 
D)  K3P2 
E)  KP3 B

Question 4

Which of the following elements in its 1+ ionic state has the ground state electron configuration [Kr]4d10?

Accepted Answer

A)  Ru 
B)  Au 
C)  Ag 
D)  In 
E)  Cd 
A)  Ru 
B)  Au 
C)  Ag 
D)  In 
E)  Cd

Question 5

Which of the following orbital occupancy designations is incorrect?

Accepted Answer

A)  2s2 
B)  3d6 
C)  1s2 
D)  4p3 
E)  3d12 
A)  2s2 
B)  3d6 
C)  1s2 
D)  4p3 
E)  3d12

Question 6

Rank the following atoms in order decreasing atomic radii: Be,Be,Be,B.

Accepted Answer

A)  B > Be > Be > Be 
B)  Be > B > Be > Be 
C)  Be > Be > B > Be 
D)  Be > Be > Be > B 
E)  B > Be > Be > Be.. 
A)  B > Be > Be > Be 
B)  Be > B > Be > Be 
C)  Be > Be > B > Be 
D)  Be > Be > Be > B 
E)  B > Be > Be > Be..

Question 7

What is a possible set of quantum numbers for an unpaired electron in the orbital box diagram below?

Accepted Answer

A)  n = 1,   = 1,   = -1,ms = +1/2 
B)  n = 4,   = 2,   = -1,ms = -1/2 
C)  n = 5,   = 2,   = -2,ms = +1/2 
D)  n = 5,   = 0,   = 0,ms = -1/2 
E)  n = 5,   = 1,   = -1,ms = +1/2 
A)  n = 1,   = 1,   = -1,ms = +1/2 
B)  n = 4,   = 2,   = -1,ms = -1/2 
C)  n = 5,   = 2,   = -2,ms = +1/2 
D)  n = 5,   = 0,   = 0,ms = -1/2 
E)  n = 5,   = 1,   = -1,ms = +1/2

Question 8

Which of the following elements 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 9

Which element has the following ground state electron configuration?

Accepted Answer

A)  In 
B)  Y 
C)  Nb 
D)  Tl 
E)  Ga 
A)  In 
B)  Y 
C)  Nb 
D)  Tl 
E)  Ga

Question 10

Which atom has the ground state electronic configuration 1s22s22p63s23p64s23d3?

Accepted Answer

A)  Ga 
B)  V 
C)  As 
D)  Nb 
E)  none 
A)  Ga 
B)  V 
C)  As 
D)  Nb 
E)  none

Question 11

What is the ground state electron configuration for Cr3+?

Accepted Answer

A)  [Ar] 
B)  [Ar]3d74s2 
C)  [Ar]3d14s2 
D)  [Ar]3d24s1 
E)  [Ar]3d3 
A)  [Ar] 
B)  [Ar]3d74s2 
C)  [Ar]3d14s2 
D)  [Ar]3d24s1 
E)  [Ar]3d3

Question 12

Which of the following orbital diagrams represents 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 13

________ rule states that the most stable arrangement of electrons is that which contains the maximum number of unpaired electrons,all with the same spin direction.

Accepted Answer

The answer of ________ rule states that the most stable...

Question 14

Which of the following ions has the given ground state electron configuration?

Accepted Answer

A)  Cd2+ 
B)  Sr2+ 
C)  Zn2+ 
D)  Sn2+ 
E)  None of these 
A)  Cd2+ 
B)  Sr2+ 
C)  Zn2+ 
D)  Sn2+ 
E)  None of these

Question 15

Which of the following electron configurations corresponds to the ground state of an atom of a transition element?

Accepted Answer

A)  1s22s22p1 
B)  1s22s22p63s23p63d104s24p3 
C)  1s22s22p63s23p63d14s2 
D)  1s22s22p63s23p64s1 
E)  1s22s22p63s23p4 
A)  1s22s22p1 
B)  1s22s22p63s23p63d104s24p3 
C)  1s22s22p63s23p63d14s2 
D)  1s22s22p63s23p64s1 
E)  1s22s22p63s23p4

Question 16

_____ have no affinity for electrons.

Accepted Answer

A)  Transition metals 
B)  s-block elements 
C)  Main group nonmetals 
D)  Noble gases 
E)  Semiconductors 
A)  Transition metals 
B)  s-block elements 
C)  Main group nonmetals 
D)  Noble gases 
E)  Semiconductors

Question 17

All of the following ground-state electron configurations are correct except

Accepted Answer

A)  V: [Ar]4s24d3 
B)  K: [Ar]4s1 
C)  Sb: [Kr]4d105s25p3 
D)  Cr: [Ar]3d54s1 
E)  Te: [Kr]4d105s25p4 
A)  V: [Ar]4s24d3 
B)  K: [Ar]4s1 
C)  Sb: [Kr]4d105s25p3 
D)  Cr: [Ar]3d54s1 
E)  Te: [Kr]4d105s25p4

Question 18

A metal oxide forms when potassium reacts with oxygen.What is the most likely formula of this metal oxide?

Accepted Answer

A)  KO 
B)  K2O 
C)  K2O3 
D)  KO2 
E)  KO3 
A)  KO 
B)  K2O 
C)  K2O3 
D)  KO2 
E)  KO3

Question 19

How many unpaired electrons are found in the ground state electron configuration of barium (ba)?

Accepted Answer

A)  0 
B)  1 
C)  2 
D)  3 
E)  5 
A)  0 
B)  1 
C)  2 
D)  3 
E)  5

Question 20

The change in energy for the following reaction is referred to as the ____ for boron. B(g)+ e- → B-(g)

Accepted Answer

A)  oxidation number 
B)  electron affinity 
C)  electronegativity energy 
D)  first ionization energy 
E)  second ionization energy 
A)  oxidation number 
B)  electron affinity 
C)  electronegativity energy 
D)  first ionization energy 
E)  second ionization energy

Exam 8: The Structure of Atoms and Periodic Trends

How many electrons can be described by the quantum numbers n= 3 and l= 2?

The ground-state electron configuration of a Ni2+ ion is 1s22s22p63s23p63d8 .Therefore,Ni2+ is

A metal phosphide forms when potassium reacts with elemental phosphorus.What is the most likely formula of this metal phosphide?

Which of the following elements in its 1+ ionic state has the ground state electron configuration [Kr]4d10?

Which of the following orbital occupancy designations is incorrect?

Rank the following atoms in order decreasing atomic radii: Be,Be,Be,B.

What is a possible set of quantum numbers for an unpaired electron in the orbital box diagram below?

Which of the following elements has the ground state electron configuration [Ar]3d104s1?

Which element has the following ground state electron configuration?

Which atom has the ground state electronic configuration 1s22s22p63s23p64s23d3?

What is the ground state electron configuration for Cr3+?

Which of the following orbital diagrams represents a paramagnetic atom? 1s 2s 2p 1) 2. 3.

________ rule states that the most stable arrangement of electrons is that which contains the maximum number of unpaired electrons,all with the same spin direction.

Which of the following ions has the given ground state electron configuration?

Which of the following electron configurations corresponds to the ground state of an atom of a transition element?

_____ have no affinity for electrons.

All of the following ground-state electron configurations are correct except

A metal oxide forms when potassium reacts with oxygen.What is the most likely formula of this metal oxide?

How many unpaired electrons are found in the ground state electron configuration of barium (ba)?

The change in energy for the following reaction is referred to as the ____ for boron. B(g)+ e- → B-(g)

Basic Concepts of Chemistry

Lets 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 Solid State

Solutions and Their Behavior

Chemical Kinetics: the Rates of Chemical Reactions

Principles of Chemical Reactivity: Equilibria

Principles of Chemical Reactivity: the Chemistry of Acids and Bases

Principles of Chemical Reactivity: Other Aspects of Aqueous Equilibria

Principles of Chemical Reactivity: Entropy and Free Energy

Principles of Chemical 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

The ground-state electron configuration of a Ni²⁺ ion is 1s²2s²2p⁶3s²3p⁶3d⁸ .Therefore,Ni²⁺ is

Which of the following elements in its 1+ ionic state has the ground state electron configuration [Kr]4d¹⁰?

Which of the following elements has the ground state electron configuration [Ar]3d¹⁰4s¹?

Which atom has the ground state electronic configuration 1s²2s²2p⁶3s²3p⁶4s²3d³?

What is the ground state electron configuration for Cr³⁺?

The change in energy for the following reaction is referred to as the ____ for boron. B(g)+ e^- → B^-(g)