Question 1

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

Accepted Answer

A) Si4+ 
B) Sc3+ 
C) Zn2+ 
D) Se2- 
A) Si4+ 
B) Sc3+ 
C) Zn2+ 
D) Se2-

Question 2

Calculate the lattice energy for NaCl(s)using a Born-Haber cycle and the following information: NaCl(s)→ Na+(g)+ Cl-(g)?
Na(s)+ 1/2 Cl2(g)→ NaCl(s)-411.0 kJ/mol
Na(s)→ Na(g)+107.3 kJ/mol
Na(g)→ Na+(g)+ e- +495.8 kJ/mol
1/2 Cl2(g)→ Cl(g)+121.7 kJ/mol
Cl(g)+ e- → Cl-(g)-348.6 kJ/mol

Accepted Answer

A) +34.8 kJ/mol 
B) +690.3 kJ/mol 
C) +787.2 kJ/mol 
D) +1512 kJ/mol 
A) +34.8 kJ/mol 
B) +690.3 kJ/mol 
C) +787.2 kJ/mol 
D) +1512 kJ/mol

Question 3

Using shorthand notation,the ground-state electron configuration for Co2+ is predicted to be ________.

Accepted Answer

Question 4

Which of the following atoms with the specified electronic configurations would have the lowest first ionization energy?

Accepted Answer

A) [He]2s22p3 
B) [Ne]3s23p4 
C) [Xe]6s1 
D) [Xe]6s24f145d106p1 
A) [He]2s22p3 
B) [Ne]3s23p4 
C) [Xe]6s1 
D) [Xe]6s24f145d106p1

Question 5

-Which of the above pictures are more likely to represent covalent compounds?

Accepted Answer

A) pictures (a)and (b) 
B) pictures (a)and (d) 
C) pictures (b)and (c) 
D) pictures (b)and (d) 
A) pictures (a)and (b) 
B) pictures (a)and (d) 
C) pictures (b)and (c) 
D) pictures (b)and (d)

Question 6

Indicate which is larger in each of the following two sets. (I)Cr2+ or Cr (II)N2- or N

Accepted Answer

A) Cr2+ is larger than Cr and N3- is larger than N. 
B) Cr2+ is larger than Cr and N is larger than N3-. 
C) Cr is larger than Cr2+ and N3- is larger than N. 
D) Cr is larger than Cr2+ and N is larger than N3-. 
A) Cr2+ is larger than Cr and N3- is larger than N. 
B) Cr2+ is larger than Cr and N is larger than N3-. 
C) Cr is larger than Cr2+ and N3- is larger than N. 
D) Cr is larger than Cr2+ and N is larger than N3-.

Question 7

An element M reacts with chlorine to form MCl2,with oxygen to form MO,and with nitrogen to form M3N2.The most likely candidate for the element is

Accepted Answer

A) Na 
B) Sr 
C) B 
D) Ge 
A) Na 
B) Sr 
C) B 
D) Ge

Question 8

Which contains covalent bonds?

Accepted Answer

A) LiOO 
B) NH3 
C) LiCl 
D) CaI2 
A) LiOO 
B) NH3 
C) LiCl 
D) CaI2

Question 9

Which of the following species will have the highest ionization energy?

Accepted Answer

A) Rb+ 
B) Kr 
C) Br- 
D) Se2- 
A) Rb+ 
B) Kr 
C) Br- 
D) Se2-

Question 10

What is the ground-state electron configuration of Se2-?

Accepted Answer

A) [Ar]3d104s24p2 
B) [Ar]3d104s24p4 
C) [Ar]3d124s24p4 
D) [Ar]3d104s24p6 
A) [Ar]3d104s24p2 
B) [Ar]3d104s24p4 
C) [Ar]3d124s24p4 
D) [Ar]3d104s24p6

Question 11

Which ionization process requires the most energy?

Accepted Answer

A) Al(g)→ Al+(g)+ e- 
B) Al+(g)→ Al2+(g)+ e- 
C) Al2+(g)→ Al3+(g)+ e- 
D) Al3+(g)→ Al4+(g)+ e- 
A) Al(g)→ Al+(g)+ e- 
B) Al+(g)→ Al2+(g)+ e- 
C) Al2+(g)→ Al3+(g)+ e- 
D) Al3+(g)→ Al4+(g)+ e-

Question 12

-Atoms of which element,indicated by letter on the periodic table above,would be expected to have the highest second ionization energy,Ei1?

Accepted Answer

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

Question 13

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

Accepted Answer

Question 14

The four spheres below represent NaS1U1P1+S1S1P0,MgS1U1P12+S1S1P0,F⁻,and OS1U1P12-S1S1P0,not necessarily in that order.  
-Which sphere most likely represents the Mg2+ ion?

Accepted Answer

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

Question 15

Which two ions have the same electron configuration in the ground state?

Accepted Answer

A) Cs+ and Li+ 
B) Ca2+ and Cl- 
C) Se2+ and Cl- 
D) Fe2+ and Fe3+ 
A) Cs+ and Li+ 
B) Ca2+ and Cl- 
C) Se2+ and Cl- 
D) Fe2+ and Fe3+

Question 16

Calculate the lattice energy for MgO(s)using a Born-Haber cycle and the following information: MgO(s)→ Mg2+(g)+ O2-(g)?
Mg(s)→ Mg(g)+147.1 kJ/mol
Mg(g)→ Mg+(g)+ e- +737.8 kJ/mol
Mg+(g)→ Mg2+(g)+ e- +1451 kJ/mol
1/2 O2(g)→ O(g)+249.0 kJ/mol
O(g)+ e- → O-(g)-141.1 kJ/mol
O-(g)+ e- → O2-(g)+798.0 kJ/mol
Mg(s)+ 1/2 O2(g)→ MgO(s)-601.8 kJ/mol

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 17

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 18

What is the ground-state electron configuration of the ion Cu2+?

Accepted Answer

A) [Ar] 3d9 
B) [Ar] 4s1 3d8 
C) [Ar] 4s2 3d7 
D) [Ar] 4s2 3d10 4p1 
A) [Ar] 3d9 
B) [Ar] 4s1 3d8 
C) [Ar] 4s2 3d7 
D) [Ar] 4s2 3d10 4p1

Question 19

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

Accepted Answer

A) indium 
B) rubidium 
C) tin 
D) strontium 
A) indium 
B) rubidium 
C) tin 
D) strontium

Question 20

Which chemical process is associated with the lattice energy for sodium chloride?

Accepted Answer

A) NaCl(s)→ Na+(g)+ Cl-(g) 
B) NaCl(g)→ Na+(g)+ Cl-(g) 
C) Na(s)+ 1/2 Cl2(g)→ NaCl(s) 
D) NaCl(s)+ H2O(l)→ Na+(aq)+ Cl-(aq) 
A) NaCl(s)→ Na+(g)+ Cl-(g) 
B) NaCl(g)→ Na+(g)+ Cl-(g) 
C) Na(s)+ 1/2 Cl2(g)→ NaCl(s) 
D) NaCl(s)+ H2O(l)→ Na+(aq)+ Cl-(aq)

Exam 6: Ionic Compounds: Periodic Trends and Bonding

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

Calculate the lattice energy for NaCl(s)using a Born-Haber cycle and the following information: NaCl(s)→ Na+(g)+ Cl-(g)? Na(s)+ 1/2 Cl2(g)→ NaCl(s)-411.0 kJ/mol Na(s)→ Na(g)+107.3 kJ/mol Na(g)→ Na+(g)+ e- +495.8 kJ/mol 1/2 Cl2(g)→ Cl(g)+121.7 kJ/mol Cl(g)+ e- → Cl-(g)-348.6 kJ/mol

Using shorthand notation,the ground-state electron configuration for Co2+ is predicted to be ________.

Which of the following atoms with the specified electronic configurations would have the lowest first ionization energy?

-Which of the above pictures are more likely to represent covalent compounds?

Indicate which is larger in each of the following two sets. (I)Cr2+ or Cr (II)N2- or N

An element M reacts with chlorine to form MCl2,with oxygen to form MO,and with nitrogen to form M3N2.The most likely candidate for the element is

Which contains covalent bonds?

Which of the following species will have the highest ionization energy?

What is the ground-state electron configuration of Se2-?

Which ionization process requires the most energy?

-Atoms of which element,indicated by letter on the periodic table above,would be expected to have the highest second ionization energy,Ei1?

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

The four spheres below represent Na+,Mg2+,F⁻,and O2-,not necessarily in that order. -Which sphere most likely represents the Mg2+ ion?

Which two ions have the same electron configuration in the ground state?

Which ion has the same electron configuration as Kr?

What is the ground-state electron configuration of the ion Cu2+?

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

Which chemical process is associated with the lattice energy for sodium chloride?

Chemical Tools: Experimentation and Measurement

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Mass Relationships in Chemical Reactions

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Periodicity and the Electronic Structure of Atoms

Covalent Bonding and Electron-Dot Structures

Covalent Compounds: Bonding Theories 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

Nuclear Chemistry

Transition Elements and Coordination Chemistry

Metals and Solid-State Materials

The Main-Group Elements

Connections to Organic and Biological Chemistry

Filters

Using shorthand notation,the ground-state electron configuration for Co²⁺ is predicted to be ________.

Indicate which is larger in each of the following two sets. (I)Cr²⁺ or Cr (II)N^2- or N

An element M reacts with chlorine to form MCl₂,with oxygen to form MO,and with nitrogen to form M₃N₂.The most likely candidate for the element is

What is the ground-state electron configuration of Se^2-?

-Atoms of which element,indicated by letter on the periodic table above,would be expected to have the highest second ionization energy,E_i1?

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

The four spheres below represent Na⁺,Mg²⁺,F⁻,and O^2-,not necessarily in that order. -Which sphere most likely represents the Mg²⁺ ion?

What is the ground-state electron configuration of the ion Cu²⁺?