Chapter 7 Periodic Properties of the Elements

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Transcript Chapter 7 Periodic Properties of the Elements

Chemistry, The Central Science, 11th edition Theodore L. Brown; H. Eugene LeMay, Jr.; Bruce E. Bursten and Catherine J. Murphy

Chapter 8 Basic Concepts of Chemical Bonding

Donna Narsavage Heald Siena College Loudonville, NY

2009, Prentice Hall

Which atom sometimes violates the octet rule? 1. C 2. N 3. O 4. F 5. S

Which atom sometimes violates the octet rule? 1. C 2. N 3. O 4. F 5. S

Order the following according to increasing atomic radius. Ge Si Se Cl 1. Ge < Si < Se < Cl 2. Se < Si < Ge < Cl 3. Si < Cl < Ge < Se 4. Cl < Si < Se < Ge 5. Si < Ge < Se < Cl

Order the following according to increasing atomic radius. Ge Si Se Cl 1. Ge < Si < Se < Cl 2. Se < Si < Ge < Cl 3. Si < Cl < Ge < Se 4. Cl < Si < Se < Ge 5. Si < Ge < Se < Cl

Which of the following will have the largest lattice energy? 1. CsCl 2. ZnS 3. CaF 2 4. NaCl 5. Diamond

Which of the following will have the largest lattice energy? 1. CsCl 2. ZnS 3. CaF 2 4. NaCl 5. Diamond

What is the electronic configuration of Fe 2+ ? 1. 4s 2 3d 4 2. 4s 1 3d 5 3. 3d 5 4. 3d 6 5. 4s 2 3d 8

What is the electronic configuration of Fe 2+ ? 1. 4s 2 3d 4 2. 4s 1 3d 5 3. 3d 5 4. 3d 6 5. 4s 2 3d 8

How many unpaired electrons are there in Cu + ? 1. 0 2. 1 3. 2 4. 3 5. 4

How many unpaired electrons are there in Cu + ? 1. 0 2. 1 3. 2 4. 3 5. 4

What is the average bond order in the molecule ozone, O 3 ? 1. 1 2. 1.33

3. 1.5 4. 1.67 5. 2

What is the average bond order in the molecule ozone, O 3 ? 1. 1 2. 1.33

3. 1.5 4. 1.67 5. 2

What is the average S —O bond order in the Lewis structure of sulfur trioxide, SO 3 ? 1. 0.5

2. 1 3. 1.33

4. 1.5

5. 2

What is the average S —O bond order in the Lewis structure of sulfur trioxide, SO 3 ? 1. 0.5

2. 1 3. 1.33

4. 1.5

5. 2

How many resonance structures can be drawn for NO 3 – ? 1. 1 2. 2 3. 3 4. 4 5. 5

How many resonance structures can be drawn for NO 3 – ? 1. 1 2. 2 3. 3 4. 4 5. 5

Considering formal charge, what is the preferred Lewis structure of NCO – ?

Considering formal charge, what is the preferred Lewis structure of NCO – ?