Question 1

Which of the following ions will be most likely to form when selenium ionizes?

Accepted Answer

A) Se6+ 
B) Se4+ 
C) Se2+ 
D) Se2- 
E) Se4- 
A) Se6+ 
B) Se4+ 
C) Se2+ 
D) Se2- 
E) Se4-

Question 2

Define what is meant by ionization energy,and write a balanced chemical equation to represent the relevant process for element X.

Accepted Answer

Ionization energy is the minim

Question 3

In forming ions of the first series of transition metals,the 4s electrons are lost before the 3d electrons.

Accepted Answer

A) True 
 B)False

Question 4

Select the correct set of quantum numbers (n,l,ml,ms)for the first electron removed in the formation of a cation for strontium,Sr.

Accepted Answer

A) 5,1 ,0,
  
B) 5,1,0,
  
C) 5,0,1,
  
D) 5,1,1,
  
E) 5,0,0,
  
A) 5,1 ,0,
  
B) 5,1,0,
  
C) 5,0,1,
  
D) 5,1,1,
  
E) 5,0,0,

Question 5

Select the most acidic compound from the following.

Accepted Answer

A) SO2 
B) Al2O3 
C) CaO 
D) PbO 
E) H2O 
A) SO2 
B) Al2O3 
C) CaO 
D) PbO 
E) H2O

Question 6

In Mendeleev's version of the periodic table,the elements were arranged in order of increasing atomic number.

Accepted Answer

A) True 
 B)False

Question 7

The maximum number of electrons in an atom with the same value of n is 2n2.

Accepted Answer

A) True 
 B)False

Question 8

Elements with ________________ first ionization energies and ___________ electron affinities generally form cations.

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 9

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

Accepted Answer

A) 5,2,-1,
  
B) 5,2,0,
  
C) 5,1,2,
  
D) 5,1,0,
  
E) 5,2,1,
  
A) 5,2,-1,
  
B) 5,2,0,
  
C) 5,1,2,
  
D) 5,1,0,
  
E) 5,2,1,

Question 10

Which of the following elements has the largest atomic size?

Accepted Answer

A) S 
B) Ca 
C) Ba 
D) Po 
E) Rn 
A) S 
B) Ca 
C) Ba 
D) Po 
E) Rn

Question 11

Select the correct electron configuration for sulfur (Z = 16).

Accepted Answer

A) 1s21p62s22p6 
B) 1s22s22p83s23p4 
C) 1s22s22p83s23p2 
D) 1s22s22p63s23p4 
E) 1s22s22p63s23d4 
A) 1s21p62s22p6 
B) 1s22s22p83s23p4 
C) 1s22s22p83s23p2 
D) 1s22s22p63s23p4 
E) 1s22s22p63s23d4

Question 12

Identify the element of Period 2 which has the following successive ionization energies,in kJ/mol.

Accepted Answer

A) Li 
B) B 
C) O 
D) Ne 
E) None of these choices is correct. 
A) Li 
B) B 
C) O 
D) Ne 
E) None of these choices is correct.

Question 13

Which of the following elements is paramagnetic?

Accepted Answer

A) Kr 
B) Zn 
C) Sr 
D) V 
E) Ar 
A) Kr 
B) Zn 
C) Sr 
D) V 
E) Ar

Question 14

Energy states of atoms containing more than one electron arise from nucleus-electron and electron-electron interactions.Which of the following statements correctly describes these effects?

Accepted Answer

A) Larger nuclear charge lowers energy,more electrons in an orbital lowers energy. 
B) Larger nuclear charge lowers energy,more electrons in an orbital increases energy. 
C) Smaller nuclear charge lowers energy,more electrons in an orbital lowers energy. 
D) Smaller nuclear charge lowers energy,more electrons in an orbital increases energy. 
E) None of these statements is generally correct. 
A) Larger nuclear charge lowers energy,more electrons in an orbital lowers energy. 
B) Larger nuclear charge lowers energy,more electrons in an orbital increases energy. 
C) Smaller nuclear charge lowers energy,more electrons in an orbital lowers energy. 
D) Smaller nuclear charge lowers energy,more electrons in an orbital increases energy. 
E) None of these statements is generally correct.

Question 15

In moving down a group in the periodic table,the oxides of the elements become more acidic in nature.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following elements has the largest first ionization energy?

Accepted Answer

A) Na 
B) Cl 
C) Ca 
D) Te 
E) Br 
A) Na 
B) Cl 
C) Ca 
D) Te 
E) Br

Question 17

Briefly describe how the atomic radii and ionization energies of group 1A(1)elements compare with those of group 8A(18).Also,explain why the values of these properties are so different between these two groups.

Accepted Answer

Group 1A (1)atoms are much lar

Question 18

Select the element with the least metallic character.

Accepted Answer

A) Sn 
B) Sr 
C) Tl 
D) Ge 
E) Ga 
A) Sn 
B) Sr 
C) Tl 
D) Ge 
E) Ga

Question 19

Define what is meant by electron affinity,and write a balanced chemical equation to represent the relevant process for element Y.

Accepted Answer

Electron affinity is the energ

Question 20

Electron affinities of neutral atoms may be positive or negative.

Accepted Answer

A) True 
 B)False

Exam 8: Electron Configuration and Chemical Periodicity

Which of the following ions will be most likely to form when selenium ionizes?

Define what is meant by ionization energy,and write a balanced chemical equation to represent the relevant process for element X.

In forming ions of the first series of transition metals,the 4s electrons are lost before the 3d electrons.

Select the correct set of quantum numbers (n,l,ml,ms)for the first electron removed in the formation of a cation for strontium,Sr.

Select the most acidic compound from the following.

In Mendeleev's version of the periodic table,the elements were arranged in order of increasing atomic number.

The maximum number of electrons in an atom with the same value of n is 2n2.

Elements with ________________ first ionization energies and ___________ electron affinities generally form cations.

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

Which of the following elements has the largest atomic size?

Select the correct electron configuration for sulfur (Z = 16).

Identify the element of Period 2 which has the following successive ionization energies,in kJ/mol.

Which of the following elements is paramagnetic?

Energy states of atoms containing more than one electron arise from nucleus-electron and electron-electron interactions.Which of the following statements correctly describes these effects?

In moving down a group in the periodic table,the oxides of the elements become more acidic in nature.

Which of the following elements has the largest first ionization energy?

Briefly describe how the atomic radii and ionization energies of group 1A(1)elements compare with those of group 8A(18).Also,explain why the values of these properties are so different between these two groups.

Select the element with the least metallic character.

Define what is meant by electron affinity,and write a balanced chemical equation to represent the relevant process for element Y.

Electron affinities of neutral atoms may be positive or negative.

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

Select the correct set of quantum numbers (n,l,m_l,m_s)for the first electron removed in the formation of a cation for strontium,Sr.

The maximum number of electrons in an atom with the same value of n is 2n².

Elements with ______ first ionization energies and _ electron affinities generally form cations.

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