Question 1

-Atoms of which element,indicated by letter on the periodic table,are expected to have the largest atomic radius?

Accepted Answer

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

Question 2

-What is the likely formula for the binary compound formed from the elements represented by letters A and D on the periodic table above?

Accepted Answer

A) AD 
B) A2D 
C) AD2 
D) A2D3 
A) AD 
B) A2D 
C) AD2 
D) A2D3

Question 3

Calculate the energy change for the formation of MgBr2(s)from its elements in their standard states:

Accepted Answer

A) -150.8 kJ/mol 
B) -286.0 kJ/mol 
C) -499.2 kJ/mol 
D) -5682 kJ/mol 
A) -150.8 kJ/mol 
B) -286.0 kJ/mol 
C) -499.2 kJ/mol 
D) -5682 kJ/mol

Question 4

Which ion does not have a noble gas configuration in its ground state?

Accepted Answer

A) Sc3+ 
B) Al3+ 
C) Ga3+ 
D) As3- 
A) Sc3+ 
B) Al3+ 
C) Ga3+ 
D) As3-

Question 5

Which contains both covalent bonds and ionic bonds?

Accepted Answer

A) HCl 
B) NaCl 
C) NH3 
D) NH4Cl 
A) HCl 
B) NaCl 
C) NH3 
D) NH4Cl

Question 6

Potassium reacts with oxygen to form a superoxide with the formula ________.

Accepted Answer

The answer of Potassium reacts with oxygen to form a...

Question 7

Calculate the lattice energy for MgO(s)using a Born-Haber cycle and the following information:

Accepted Answer

A) +1842 kJ/mol 
B) +2444 kJ/mol 
C) +3844 kJ/mol 
D) +4108 kJ/mol 
A) +1842 kJ/mol 
B) +2444 kJ/mol 
C) +3844 kJ/mol 
D) +4108 kJ/mol

Question 8

What is the ground-state electron configuration of the ion Hg2+?

Accepted Answer

A) [Xe]4f145d10 
B) [Xe]4f145d86s2 
C) [Xe]4f145d106s2 
D) [Xe]4f145d106s26p2 
A) [Xe]4f145d10 
B) [Xe]4f145d86s2 
C) [Xe]4f145d106s2 
D) [Xe]4f145d106s26p2

Question 9

Of the following,which element has the highest first ionization energy?

Accepted Answer

A) beryllium 
B) boron 
C) hydrogen 
D) lithium 
A) beryllium 
B) boron 
C) hydrogen 
D) lithium

Question 10

Which ionic compound would be expected to have the highest lattice energy?

Accepted Answer

A) Li2O 
B) Na2O2 
C) KO2 
D) RbO2 
A) Li2O 
B) Na2O2 
C) KO2 
D) RbO2

Question 11

Each of the pictures (a)-(d)represents one of the following substances at 25°C: potassium,fluorine,iodine,potassium fluoride,not necessarily in that order.  
-Which picture corresponds to potassium?

Accepted Answer

A) picture (a) 
B) picture (b) 
C) picture (c) 
D) picture (d) 
A) picture (a) 
B) picture (b) 
C) picture (c) 
D) picture (d)

Question 12

Which ion has the same electron configuration as Kr?

Accepted Answer

A) Rb+ 
B) Br- 
C) Se2- 
D) All of these 
A) Rb+ 
B) Br- 
C) Se2- 
D) All of these

Question 13

The four spheres below represent KS1U1P1+S1S1P0,CaS1U1P12+S1S1P0,ClS1U1P1-S1S1P0,and SS1U1P12-S1S1P0,not necessarily in that order.  
-Which sphere most likely represents the K+ ion?

Accepted Answer

A) A 
B) B 
C) A or B 
D) C or D 
A) A 
B) B 
C) A or B 
D) C or D

Question 14

Of the following,which element has the highest first ionization energy?

Accepted Answer

A) Sr 
B) Br 
C) K 
D) Te 
A) Sr 
B) Br 
C) K 
D) Te

Question 15

Which of the following statements about helium is inconsistent with its chemistry?

Accepted Answer

A) A helium oxygen mixture is used as a deep-sea diving gas instead of compressed air. 
B) In its liquid form it is used as a cryogenic coolant for superconductors. 
C) It is one of the more reactive elements of its group. 
D) Its melting point is -272.2°C and its boiling point is -268.9°C. 
A) A helium oxygen mixture is used as a deep-sea diving gas instead of compressed air. 
B) In its liquid form it is used as a cryogenic coolant for superconductors. 
C) It is one of the more reactive elements of its group. 
D) Its melting point is -272.2°C and its boiling point is -268.9°C.

Question 16

Consider Li+,F-,and O2-.Which ratio should be the largest?

Accepted Answer

A) (radius Li+)/(radius F-) 
B) (radius Li+)/(radius O2-) 
C) (radius F-)/(radius Li+) 
D) (radius O2-)/(radius Li+) 
A) (radius Li+)/(radius F-) 
B) (radius Li+)/(radius O2-) 
C) (radius F-)/(radius Li+) 
D) (radius O2-)/(radius Li+)

Question 17

The element in period 4 with the smallest first ionization energy is ________.

Accepted Answer

The answer of The element in period 4 with the...

Question 18

Which of the following elements is a liquid at room temperature?

Accepted Answer

A) fluorine 
B) chlorine 
C) bromine 
D) iodine 
A) fluorine 
B) chlorine 
C) bromine 
D) iodine

Question 19

The number of electrons in the ion Zn2+ is ________.

Accepted Answer

Question 20

Of the following,which element has the highest first ionization energy?

Accepted Answer

A) beryllium 
B) boron 
C) carbon 
D) lithium 
A) beryllium 
B) boron 
C) carbon 
D) lithium

Exam 6: Ionic Bonds and Some Main-Group Chemistry

-Atoms of which element,indicated by letter on the periodic table,are expected to have the largest atomic radius?

-What is the likely formula for the binary compound formed from the elements represented by letters A and D on the periodic table above?

Calculate the energy change for the formation of MgBr2(s)from its elements in their standard states:

Which ion does not have a noble gas configuration in its ground state?

Which contains both covalent bonds and ionic bonds?

Potassium reacts with oxygen to form a superoxide with the formula ________.

Calculate the lattice energy for MgO(s)using a Born-Haber cycle and the following information:

What is the ground-state electron configuration of the ion Hg2+?

Of the following,which element has the highest first ionization energy?

Which ionic compound would be expected to have the highest lattice energy?

Each of the pictures (a)-(d)represents one of the following substances at 25°C: potassium,fluorine,iodine,potassium fluoride,not necessarily in that order. -Which picture corresponds to potassium?

Which ion has the same electron configuration as Kr?

The four spheres below represent K+,Ca2+,Cl-,and S2-,not necessarily in that order. -Which sphere most likely represents the K+ ion?

Of the following,which element has the highest first ionization energy?

Which of the following statements about helium is inconsistent with its chemistry?

Consider Li+,F-,and O2-.Which ratio should be the largest?

The element in period 4 with the smallest first ionization energy is ________.

Which of the following elements is a liquid at room temperature?

The number of electrons in the ion Zn2+ is ________.

Of the following,which element has the highest first ionization energy?

Chemistry: Matter and Measurement

Atoms, molecules, and Ions

Formulas, equations, and Moles

Reactions in Aqueous Solutions

Periodicity and the Atomic Structure of Atoms

Covalent Bonds and Molecular Structure

Thermochemistry: Chemical Energy

Gases: Their Properties and Behavior

Liquids,solids,and Phase Changes

Solutions and Their Properties

Chemical Kinetics

Chemical Equilibrium

Aqueous Equilibria: Acids and Bases

Applications of Aqueous Equilibria

Thermodynamics: Entropy, free Energy, and Equilibrium

Electrochemistry

Hydrogen, oxygen, and Water

The Main-Group Elements

Transition Elements and Coordination Chemistry

Metals and Solid-State Materials

Nuclear Chemistry

Organic and Biological Chemistry

Filters

Calculate the energy change for the formation of MgBr₂(s)from its elements in their standard states:

What is the ground-state electron configuration of the ion Hg²⁺?

The four spheres below represent K⁺,Ca²⁺,Cl^-,and S^2-,not necessarily in that order. -Which sphere most likely represents the K⁺ ion?

Consider Li⁺,F^-,and O^2-.Which ratio should be the largest?

The number of electrons in the ion Zn²⁺ is ________.