Question 1

Elements with _______________ first ionization energies and ___________ electron affinities generally form anions.

Accepted Answer

A) low,very negative 
B) high,positive or slightly negative 
C) low,positive or slightly negative 
D) high,very negative 
E) None of these is generally correct. 
A) low,very negative 
B) high,positive or slightly negative 
C) low,positive or slightly negative 
D) high,very negative 
E) None of these is generally correct.

Question 2

In a single atom,what is the maximum number of electrons which can have quantum number n = 4?

Accepted Answer

A) 16 
B) 18 
C) 32 
D) 36 
E) None of these choices is correct. 
A) 16 
B) 18 
C) 32 
D) 36 
E) None of these choices is correct.

Question 3

Select the correct electron configuration for Te (Z = 52).

Accepted Answer

A) [Kr]5s25p64d8 
B) [Kr]5s25d105p4 
C) [Kr]5s24d105p6 
D) [Kr]5s24f14 
E) [Kr]5s24d105p4 
A) [Kr]5s25p64d8 
B) [Kr]5s25d105p4 
C) [Kr]5s24d105p6 
D) [Kr]5s24f14 
E) [Kr]5s24d105p4

Question 4

The most acidic oxides are formed from elements found in the _________________ region of the periodic table.

Accepted Answer

A) upper right 
B) upper left 
C) center 
D) lower right 
E) lower left 
A) upper right 
B) upper left 
C) center 
D) lower right 
E) lower left

Question 5

Select the correct electron configuration for Cu (Z = 29).

Accepted Answer

A) [Ar]4s23d9 
B) [Ar]4s13d10 
C) [Ar]4s24p63d3 
D) [Ar]4s24d9 
E) [Ar]5s24d9 
A) [Ar]4s23d9 
B) [Ar]4s13d10 
C) [Ar]4s24p63d3 
D) [Ar]4s24d9 
E) [Ar]5s24d9

Question 6

According to the exclusion principle,two is the maximum number of electrons in an atom which can share the same four quantum numbers.

Accepted Answer

A) True 
 B)False

Question 7

Select the element with the most negative electron affinity (i.e. ,accepts an electron most readily).

Accepted Answer

A) H 
B) Li 
C) C 
D) F 
E) Ne 
A) H 
B) Li 
C) C 
D) F 
E) Ne

Question 8

Which of the following elements has the greatest atomic radius?

Accepted Answer

A) Li 
B) Ne 
C) Rb 
D) Sr 
E) Xe 
A) Li 
B) Ne 
C) Rb 
D) Sr 
E) Xe

Question 9

Which one of the following statements about atomic structure and quantum numbers is incorrect?

Accepted Answer

A) In a given atom,the maximum number of electrons having principal quantum number n = 3,is 18. 
B) The number of orbitals in a given f subshell is 7. 
C) For n = 4,the largest possible value of l is 3. 
D) For n = 4,the largest possible value of ml is 2. 
E) The following set of quantum numbers for a single orbital is not allowed: n = 3,l = 1,ml = -2. 
A) In a given atom,the maximum number of electrons having principal quantum number n = 3,is 18. 
B) The number of orbitals in a given f subshell is 7. 
C) For n = 4,the largest possible value of l is 3. 
D) For n = 4,the largest possible value of ml is 2. 
E) The following set of quantum numbers for a single orbital is not allowed: n = 3,l = 1,ml = -2.

Question 10

Which one of the following statements about orbital energies is incorrect?

Accepted Answer

A) In the hydrogen atom,the energy of an orbital depends only on the value of the quantum number n. 
B) In many-electron atoms the energy of an orbital depends on both n and l. 
C) Inner electrons shield outer electrons more effectively than do electrons in the same orbital. 
D) The splitting of sublevels in many-electron atoms is explained in terms of the penetration effect. 
E) The energy of a given orbital increases as the nuclear charge Z increases. 
A) In the hydrogen atom,the energy of an orbital depends only on the value of the quantum number n. 
B) In many-electron atoms the energy of an orbital depends on both n and l. 
C) Inner electrons shield outer electrons more effectively than do electrons in the same orbital. 
D) The splitting of sublevels in many-electron atoms is explained in terms of the penetration effect. 
E) The energy of a given orbital increases as the nuclear charge Z increases.

Question 11

An atom of element number 33 (As)is in its ground electronic state.Which one of the following sets of quantum numbers could not apply to any of its electrons?

Accepted Answer

A) a 
B) b 
C) c 
D) d 
E) e 
A) a 
B) b 
C) c 
D) d 
E) e

Question 12

Which one of the following equations correctly represents the process relating to the ionization energy of X?

Accepted Answer

A) X(s) $\to$ X+(g)+ e- 
B) X2(g) $\to$ X+(g)+ X-(g) 
C) X(g)+ e-  $\to$ X-(g) 
D) X-(g) $\to$ X(g)+ e- 
E) X(g) $\to$ X+(g)+ e- 
A) X(s) $\to$ X+(g)+ e- 
B) X2(g) $\to$ X+(g)+ X-(g) 
C) X(g)+ e-  $\to$ X-(g) 
D) X-(g) $\to$ X(g)+ e- 
E) X(g) $\to$ X+(g)+ e-

Question 13

Select the correct set of quantum numbers (n,l,ml,ms)for the highest energy electron in the ground state of potassium,K.

Accepted Answer

A) 4,1,-1,
  
B) 4,1,0,
  
C) 4,0,1,
  
D) 4,0,0,
  
E) 4,1,1,
  
A) 4,1,-1,
  
B) 4,1,0,
  
C) 4,0,1,
  
D) 4,0,0,
  
E) 4,1,1,

Question 14

The electronic structure 1s22s22p63s23p64s23d8 refers to the ground state of

Accepted Answer

A) Kr 
B) Ni 
C) Fe 
D) Pd 
E) None of these choices is correct. 
A) Kr 
B) Ni 
C) Fe 
D) Pd 
E) None of these choices is correct.

Question 15

The ____________________ quantum numbers are associated with the energy of an electron in a many-electron atom.

Accepted Answer

A) n and l 
B) n and ml 
C) l and ml 
D) n and ms 
E) n,l and ml 
A) n and l 
B) n and ml 
C) l and ml 
D) n and ms 
E) n,l and ml

Question 16

Which of the following electron configurations represents the ground state for an element?

Accepted Answer

A) [Ne]3s13p1 
B) [He]2s12p3 
C) [Ne]3s23p23d1 
D) [Ne]3s23p33d1 
E) [Ne]3s23p3 
A) [Ne]3s13p1 
B) [He]2s12p3 
C) [Ne]3s23p23d1 
D) [Ne]3s23p33d1 
E) [Ne]3s23p3

Question 17

The difference in energies between the 1s and 2s orbitals is due to the penetration effect.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following elements has the smallest atomic radius?

Accepted Answer

A) Li 
B) Ne 
C) Rb 
D) Sr 
E) Xe 
A) Li 
B) Ne 
C) Rb 
D) Sr 
E) Xe

Question 19

Elements in which the outermost electron has the same principal quantum number n,show similar chemical properties.

Accepted Answer

A) True 
 B)False

Question 20

Which one of the following equations correctly represents the process involved in the electron affinity of X?

Accepted Answer

A) X(g) $\to$ X+(g)+ e- 
B) X+(g) $\to$ X+(aq) 
C) X+(g)+ e- $\to$ X(g) 
D) X(g)+ e-  $\to$ X-(g) 
E) X+(g)+ Y-(g) $\to$ XY(s) 
A) X(g) $\to$ X+(g)+ e- 
B) X+(g) $\to$ X+(aq) 
C) X+(g)+ e- $\to$ X(g) 
D) X(g)+ e-  $\to$ X-(g) 
E) X+(g)+ Y-(g) $\to$ XY(s)

Exam 8: Electron Configuration and Chemical Periodicity

Elements with _______________ first ionization energies and ___________ electron affinities generally form anions.

In a single atom,what is the maximum number of electrons which can have quantum number n = 4?

Select the correct electron configuration for Te (Z = 52).

The most acidic oxides are formed from elements found in the _________________ region of the periodic table.

Select the correct electron configuration for Cu (Z = 29).

According to the exclusion principle,two is the maximum number of electrons in an atom which can share the same four quantum numbers.

Select the element with the most negative electron affinity (i.e. ,accepts an electron most readily).

Which of the following elements has the greatest atomic radius?

Which one of the following statements about atomic structure and quantum numbers is incorrect?

Which one of the following statements about orbital energies is incorrect?

An atom of element number 33 (As)is in its ground electronic state.Which one of the following sets of quantum numbers could not apply to any of its electrons?

Which one of the following equations correctly represents the process relating to the ionization energy of X?

Select the correct set of quantum numbers (n,l,ml,ms)for the highest energy electron in the ground state of potassium,K.

The electronic structure 1s22s22p63s23p64s23d8 refers to the ground state of

The ____________________ quantum numbers are associated with the energy of an electron in a many-electron atom.

Which of the following electron configurations represents the ground state for an element?

The difference in energies between the 1s and 2s orbitals is due to the penetration effect.

Which of the following elements has the smallest atomic radius?

Elements in which the outermost electron has the same principal quantum number n,show similar chemical properties.

Which one of the following equations correctly represents the process involved in the electron affinity of X?

Keys to the Study of Chemistry

The Components of Matter

Stoichiometry of Formulas and Equations

Three Major Classes of Chemical Reactions

Gases and the Kinetic-Molecular Theory

Thermochemistry: Energy Flow and Chemical Change

Quantum Theory and Atomic Structure

Models of Chemical Bonding

The Shapes of Molecules

Theories of Covalent Bonding

Intermolecular Forces: Liquids,solids,and Phase Changes

The Properties of Solutions

The Main-Group Elements: Applying Principles of Bonding and Structure

Organic Compounds and the Atomic Properties of Carbon

Kinetics: Rates and Mechanisms of Chemical Reactions

Equilibrium: the Extent of Chemical Reactions

Acid-Base Equilibria

Ionic Equilibria in Aqueous Systems

Thermodynamics: Entropy, free Energy, and the Direction of Chemical Reactions

Electrochemistry: Chemical Change and Electrical Work

The Transition Elements and Their Coordination Compounds

Nuclear Reactions and Their Applications

Filters

Elements with _____ first ionization energies and _ electron affinities generally form anions.

Select the correct set of quantum numbers (n,l,m_l,m_s)for the highest energy electron in the ground state of potassium,K.

The electronic structure 1s²2s²2p⁶3s²3p⁶4s²3d⁸ refers to the ground state of