Examples: 1. Draw the possible resonance structures for the following covalent compounds: a. O3

Size: px
Start display at page:

Download "Examples: 1. Draw the possible resonance structures for the following covalent compounds: a. O3"

Transcription

1 AP Chemistry Ms. Ye Name Date Block 1. Draw a Lewis structure for each of these molecules. Identify the molecular shape, hybridization, and bond angles. Determine the total number of valence electrons that need to be represented in the structure Set up your Lewis Structure by placing the atom that desires the most bonds in the middle Satisfy the HONC Rule and Octet Rule first If there are valence electrons that are not accounted for, put them on the central atom. a. SiCl4 Total Val e - = d. HOBr Total Val e -= b. PF3 Total Val e - = e. BrF5 Total Val e - = c. CS2 Total Val e - =

2 Resonance- Resonance structures are around the structure. Resonance occurs when electrons can flow through neighboring pi systems. In these structures, covalent bonding cannot be represented by one Lewis structure. The Examples: 1. Draw the possible resonance structures for the following covalent compounds: a. O3 b. 2. Draw all resonance forms for 3. Draw all the possible resonance structures (indicated in parentheses) for each of these molecules. a. NO3 1- (3) b. SO2 (2)

3 Formal Charge Assigned integer charges to each atom in a molecule Allows for the comparison of electrons "owned" by an atom in a Lewis structure versus the number of electrons possessed by the same atom in its unbound, free atomic state. h = # # ½ # OR Evaluation of Lewis structure Atoms in molecules must equal to the The best Lewis structure or resonance contributing structure has the It is preferred to have a Example: 1. Consider the Lewis structures for SO4 2-. Determine the formal charges for all atoms in each structure. Which SO4 2- structure is the most accurate? 2. Identify the formal charges on each element in these structures 3. Use formal charges to determine which resonance structure is the one that most closely resembles the real structure of the molecule indicated

4 Polarity of MOLECULES (the entire compound) Comparing between 2 atoms in a bond, for in the compound If there is an electronegativity difference between bonded atoms, and the molecule is then the compound is If there is an electronegativity difference between bonded atoms, and the molecule is then the compound is If there is no electronegativity difference between bonded atoms, and the molecule is then the compound is Polarity Practice: Look back at some of the Lewis Structures you drew for the molecules at the beginning of class Molecule Shape SiCl4 Is the COMPOUND completely symmetrical? Is the entire COMPOUND polar or nonpolar? PF3 CS2 HOBr BrF5 *Whether a compound is polar or nonpolar determines its molecular behavior Like dissolves like Polar substances in polar substances Nonpolar substances in nonpolar substances Polar substances in nonpolar substances

5 *Whether a compound is polar or nonpolar determines the types of attractive forces between its molecules Intermolecular Forces (sometimes referred to as Van der Waals forces ) These are NOT BONDS, which are an attraction 3 Main Types of Intermolecular Forces: London Dispersion Forces o The intermolecular force o Is the main attractive force between o In general, the the molecule, the the dispersion forces Dipole-Dipole Forces o Stronger than dispersion forces o The main attractive force between Hydrogen Bonding: is a type of intermolecular force; it is NOT actually a bond! o The intermolecular force o Only occur in molecules containing AND one of the following:,, or (NOF) Let s go back to the compounds we looked at on the previous page Molecule SiCl4 Is the entire compound polar or nonpolar (look at symmetry)? Does the compound contain H and either N, O, or F? Main type of intermolecular forces between molecules of this compound PF3 CS2 HOBr BrF5

6 Putting it all together Draw all resonance structures if it applies! Indicate shapes for multiple central atoms if it applies! H2CO POCl3 SiF4 Essential Information: 3D Lewis Structure(s). Label Bond Angles! Essential Questions: Additional Information: : N2O # sigma bonds: Geometry/Shape: Major intermolecular

7 Essential Information: 3D Lewis Structure(s). Label Bond Angles! Essential Questions: Additional Information: SO3 SF4 ClF3 : XeF4 # sigma bonds: Geometry/Shape: Major intermolecular

8

MOLECULAR ORBITAL DIAGRAM KEY

MOLECULAR ORBITAL DIAGRAM KEY 365 MOLECULAR ORBITAL DIAGRAM KEY Draw molecular orbital diagrams for each of the following molecules or ions. Determine the bond order of each and use this to predict the stability of the bond. Determine

More information

Starter # (1) What is the name for two or more

Starter # (1) What is the name for two or more 1. (1) What is the name for two or more atoms that are covalently bonded? Molecule 2. (1) What is the name for bonds that share electrons between the two atoms? Sigma Bonds 3. (1) What is the name for

More information

What are covalent bonds?

What are covalent bonds? Covalent Bonds What are covalent bonds? Covalent Bonds A covalent bond is formed when neutral atoms share one or more pairs of electrons. Covalent Bonds Covalent bonds form between two or more non-metal

More information

AP Chemistry- Practice Bonding Questions for Exam

AP Chemistry- Practice Bonding Questions for Exam AP Chemistry- Practice Bonding Questions for Exam Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which of the following is a correct Lewis structure for

More information

CHAPTER 8 BONDING: GENERAL CONCEPTS

CHAPTER 8 BONDING: GENERAL CONCEPTS Advanced Chemistry Name Hour Advanced Chemistry Approximate Timeline Students are expected to keep up with class work when absent. CHAPTER 8 BONDING: GENERAL CONCEPTS Day Plans for the day Assignment(s)

More information

CHEMISTRY 110 EXAM 2 Feb 25, 2013 FORM A

CHEMISTRY 110 EXAM 2 Feb 25, 2013 FORM A EMISTRY 110 EXAM 2 Feb 25, 2013 FORM A 1. ow many valence electrons and lone pairs are in the structure of the ammonium ion? # valence electrons # lone pairs A. 8 0 B. 10 1. 8 1 D. 10 2 E. 12 3 2. Which

More information

States of Matter. Intermolecular Forces. The States of Matter. Intermolecular Forces. Intermolecular Forces

States of Matter. Intermolecular Forces. The States of Matter. Intermolecular Forces. Intermolecular Forces Intermolecular Forces Have studied INTRAmolecular forces the forces holding atoms together to form compounds. Now turn to forces between molecules INTERmolecular forces. Forces between molecules, between

More information

Intermolecular Forces I

Intermolecular Forces I I How does the arrangement of atoms differ in the 3 phases of matter (solid, liquid, gas)? Why doesn t ice just evaporate into a gas? Why does liquid water exist at all? There must be some force between

More information

Molecular Shapes and VSEPR (Valence Shell Electron Pair Repulsion Theory)

Molecular Shapes and VSEPR (Valence Shell Electron Pair Repulsion Theory) AP Chemistry Ms. Ye Name Date Block Molecular Shapes and VSEPR (Valence Shell Electron Pair Repulsion Theory) Go to bit.ly/vseprshapes Introduction Atoms bond to satisfy their need for more electrons.

More information

For the following intermolecular forces:

For the following intermolecular forces: Lecturenotes 1 unit6_review_exercise_2017.odt Lecturenotes 2 unit6_review_exercise_2017.odt Lecturenotes 3 unit6_review_exercise_2017.odt Lecturenotes 4 unit6_review_exercise_2017.odt Answers: 1. Ionic

More information

Covalent Bonds. Unit 4b.1: Covalent bonds. Unit 4b ( se ven c la s s peri od s) Name:

Covalent Bonds. Unit 4b.1: Covalent bonds. Unit 4b ( se ven c la s s peri od s) Name: Name: Covalent Bonds Unit 4b ( se ven c la s s peri od s) Unit 4b.1: Covalent bonds 1) A different type of intramolecular force (bond) a) Ionic compounds form between ions i) Electrons are transferred

More information

Molecular Geometry and intermolecular forces. Unit 4 Chapter 9 and 11.2

Molecular Geometry and intermolecular forces. Unit 4 Chapter 9 and 11.2 1 Molecular Geometry and intermolecular forces Unit 4 Chapter 9 and 11.2 2 Unit 4.1 Chapter 9.1-9.3 3 Review of bonding Ionic compound (metal/nonmetal) creates a lattice Formula doesn t tell the exact

More information

NOTES: 8.4 Polar Bonds and Molecules

NOTES: 8.4 Polar Bonds and Molecules NOTES: 8.4 Polar Bonds and Molecules ELECTRONEGATIVITY: We ve learned how valence electrons are shared to form covalent bonds between elements. So far, we have considered the electrons to be shared equally.

More information

of its physical and chemical properties.

of its physical and chemical properties. 8.4 Molecular Shapes VSEPR Model The shape of a molecule determines many of its physical and chemical properties. Molecular l geometry (shape) can be determined with the Valence Shell Electron Pair Repulsion

More information

Outline Introduction: Multiple bonds, Bond. strength. Naming molecules Drawing Lewis Structures Molecular shapes and VSEPR theory Bond Polarity

Outline Introduction: Multiple bonds, Bond. strength. Naming molecules Drawing Lewis Structures Molecular shapes and VSEPR theory Bond Polarity Covalent Bonding Outline Introduction: Multiple bonds, Bond strength Naming molecules Drawing Lewis Structures Molecular shapes and VSEPR theory Bond Polarity Why do atoms bond? Recall that noble gases

More information

Class Period. 4. What distinguishes a polar covalent bond from a nonpolar covalent bond?

Class Period. 4. What distinguishes a polar covalent bond from a nonpolar covalent bond? Cut along dotted line. Name Assignment #1 Chemical Bonding (Predicting Bond Types) 1. What is a chemical bond? 2. Why do atoms form chemical bonds? 3. What distinguishes an ionic bond from a covalent bond?

More information

Name Date Class MOLECULAR COMPOUNDS. Distinguish molecular compounds from ionic compounds Identify the information a molecular formula provides

Name Date Class MOLECULAR COMPOUNDS. Distinguish molecular compounds from ionic compounds Identify the information a molecular formula provides 8.1 MOLECULAR COMPOUNDS Section Review Objectives Distinguish molecular compounds from ionic compounds Identify the information a molecular formula provides Vocabulary covalent bond molecule diatomic molecule

More information

AP Chemistry Chapter 7: Bonding

AP Chemistry Chapter 7: Bonding AP Chemistry Chapter 7: Bonding Types of Bonding I. holds everything together! I All bonding occurs because of! Electronegativity difference and bond character A. A difference in electronegativity between

More information

Chemical bonding is the combining of elements to form new substances.

Chemical bonding is the combining of elements to form new substances. Name Covalent Bonding and Nomenclature: Unit Objective Study Guide Class Period Date Due 1. Define chemical bonding. What is chemical bonding? Chemical bonding is the combining of elements to form new

More information

3. Which of the following cannot be a correct Lewis structure given its molecular formula?

3. Which of the following cannot be a correct Lewis structure given its molecular formula? Ch 10-11 Practice Problems The following problems are intended to provide you with additional practice in preparing for the exam. Questions come from the textbook, previous quizzes, previous exams, and

More information

Atoms have the ability to do two things in order to become isoelectronic with a Noble Gas.

Atoms have the ability to do two things in order to become isoelectronic with a Noble Gas. CHEMICAL BONDING Atoms have the ability to do two things in order to become isoelectronic with a Noble Gas. 1.Electrons can be from one atom to another forming. Positive ions (cations) are formed when

More information

Lecture outline: Section 9. theory 2. Valence bond theory 3. Molecular orbital theory. S. Ensign, Chem. 1210

Lecture outline: Section 9. theory 2. Valence bond theory 3. Molecular orbital theory. S. Ensign, Chem. 1210 Lecture outline: Section 9 Molecular l geometry and bonding theories 1. Valence shell electron pair repulsion theory 2. Valence bond theory 3. Molecular orbital theory 1 Ionic bonding Covalent bonding

More information

IB Chemistry 11 Kahoot! Review Q s Bonding

IB Chemistry 11 Kahoot! Review Q s Bonding IB Chemistry 11 Kahoot! Review Q s Bonding 1. What is the best description of the carbon-oxygen bond lengths in CO3 2-? A. One short and two long bonds B. One long and two short bonds C. Three bonds of

More information

Name Honors Chemistry / /

Name Honors Chemistry / / Name Honors Chemistry / / Lewis Structures & Resonance Structures Last chapter we studied ionic compounds. In ionic compounds electrons are gained or lost. In this chapter we are going to study covalent

More information

Dipole-Dipole Interactions https://www.youtube.com/watch?v=cerb1d6j4-m London Dispersion Forces https://www.youtube.com/watch?

Dipole-Dipole Interactions https://www.youtube.com/watch?v=cerb1d6j4-m London Dispersion Forces https://www.youtube.com/watch? CATALYST Lesson Plan GLE Physical Science 22. Predict the kind of bond that will form between two elements based on electronic structure and electronegativity of the elements (e.g., ionic, polar, nonpolar)

More information

Unit 5: Bonding. Place a checkmark next to each item that you can do. If a sample problem is given, complete it as evidence.

Unit 5: Bonding. Place a checkmark next to each item that you can do. If a sample problem is given, complete it as evidence. Unit 5: Bonding Place a checkmark next to each item that you can do. If a sample problem is given, complete it as evidence. Intramolecular Forces: forces of attraction within the same molecule. Examples:

More information

Intermolecular Forces of Attraction

Intermolecular Forces of Attraction Name Unit Title: Covalent Bonding and Nomenclature Text Reference: Pages 189-193 Date Intermolecular Forces of Attraction Intramolecular vs. Intermolecular So far in our discussion of covalent bonding,

More information

c. Ionic bonding d. Covalent bonding i. nonpolar covalent bonding

c. Ionic bonding d. Covalent bonding i. nonpolar covalent bonding Chapter 11: Chemical Bonding I. Introduction to Chemical Bonding a. Types of chemical bonding i. A chemical bond is a mutual attraction between nuclei and the valence electrons of different atoms that

More information

Chemistry II Unit 5b Practice Test

Chemistry II Unit 5b Practice Test Practice for Unit 5b Exam 2013 1 Unit5Practicetest2013.odt Chemistry II Unit 5b Practice Test Reading: This material is covered in chapter 5 and chapter 12 in your book. Your notes and your molecular drawings

More information

Unit Six --- Ionic and Covalent Bonds

Unit Six --- Ionic and Covalent Bonds Unit Six --- Ionic and Covalent Bonds Electron Configuration in Ionic Bonding Ionic Bonds Bonding in Metals Valence Electrons Electrons in the highest occupied energy level of an element s atoms Examples

More information

Unit 4:Chemical Bonding Practice Packet

Unit 4:Chemical Bonding Practice Packet Name: KEY Unit 4:Chemical Bonding Practice Packet 1. I can state the three types of chemical bonds. 2. I can state the number of valence electrons that an atom attains to be most stable. 3. I can state

More information

Chapter 9 Bonding 2 Polar Covalent Bond, Electronegativity, Formal Charge, Resonance. Dr. Sapna Gupta

Chapter 9 Bonding 2 Polar Covalent Bond, Electronegativity, Formal Charge, Resonance. Dr. Sapna Gupta Chapter 9 Bonding 2 Polar Covalent Bond, Electronegativity, Formal Charge, Resonance Dr. Sapna Gupta Writing Lewis Structures 1. Draw the skeleton structure of the molecule or ion by placing the lowest

More information

Hybridisation of Atomic Orbitals

Hybridisation of Atomic Orbitals Lecture 7 CHEM101 Hybridisation of Atomic Orbitals Dr. Noha Osman Learning Outcomes Understand the valence bond theory Understand the concept of hybridization. Understand the different types of orbital

More information

Covalent Bonding bonding that results from the sharing of electron pairs.

Covalent Bonding bonding that results from the sharing of electron pairs. Unit 5 Notes Covalent Bonding, Covalent Compounds, and Intermolecular Forces Chemical Bond a mutual electrical attraction between the nuclei and valence electrons of different atoms that binds the atoms

More information

Lewis Structure. Lewis Structures & VSEPR. Octet & Duet Rules. Steps for drawing Lewis Structures

Lewis Structure. Lewis Structures & VSEPR. Octet & Duet Rules. Steps for drawing Lewis Structures Lewis Structure Lewis Structures & VSEPR Lewis Structures shows how the are arranged among the atoms of a molecule There are rules for Lewis Structures that are based on the formation of a Atoms want to

More information

Chapter 8 Notes. Covalent Bonding

Chapter 8 Notes. Covalent Bonding Chapter 8 Notes Covalent Bonding Molecules and Molecular Compounds Helium and Neon are monoatomic, meaning they exist as single atoms Some compounds exist as crystalline solids, such as NaCl Others exist

More information

Molecular Geometry and Chemical Bonding Theory

Molecular Geometry and Chemical Bonding Theory Molecular Geometry and Chemical Bonding Theory The Valence -Shell Electron -Pair Repulsion (VSEPR) Model predicts the shapes of the molecules and ions by assuming that the valence shell electron pairs

More information

I. Multiple Choice Questions (Type-I)

I. Multiple Choice Questions (Type-I) I. Multiple Choice Questions (Type-I) 1. Isostructural species are those which have the same shape and hybridisation. Among the given species identify the isostructural pairs. (i) [NF 3 and BF 3 ] [BF

More information

Chapter 16 Covalent Bonding

Chapter 16 Covalent Bonding Chemistry/ PEP Name: Date: Chapter 16 Covalent Bonding Chapter 16: 1 26; 28, 30, 31, 35-37, 40, 43-46, Extra Credit: 50-53, 55, 56, 58, 59, 62-67 Section 16.1 The Nature of Covalent Bonding Practice Problems

More information

Molecular Geometry & Polarity

Molecular Geometry & Polarity Molecular Geometry & Polarity Learn Shapes you will Because the physical and chemical properties of compounds are tied to their structures, the importance of molecular geometry can not be overstated. Localized

More information

Warm Up 9: Definitions LT I can explain how covalent molecules create attractive forces between molecules.

Warm Up 9: Definitions LT I can explain how covalent molecules create attractive forces between molecules. Warm Up 9: Definitions 11-3-17 LT I can explain how covalent molecules create attractive forces between molecules. Q1. Draw the Lewis dot structure, label oxidation number and structural formula for: O

More information

For more info visit Chemical bond is the attractive force which holds various constituents together in a molecule.

For more info visit  Chemical bond is the attractive force which holds various constituents together in a molecule. Chemical bond:- Chemical bond is the attractive force which holds various constituents together in a molecule. There are three types of chemical bonds: Ionic Bond, Covalent Bond, Coordinate Bond. Octet

More information

CHEMISTRY - BURDGE-ATOMS FIRST 3E CH.6 - REPRESENTING MOLECULES.

CHEMISTRY - BURDGE-ATOMS FIRST 3E CH.6 - REPRESENTING MOLECULES. !! www.clutchprep.com CONCEPT: ELECTRON-DOT SYMBOLS Before we look at the first two bonding models, we have to figure out how to depict the valence electrons of bonding atoms. In the electron-dot symbol,

More information

All chemical bonding is based on the following relationships of electrostatics: 2. Each period on the periodic table

All chemical bonding is based on the following relationships of electrostatics: 2. Each period on the periodic table UNIT VIII ATOMS AND THE PERIODIC TABLE 25 E. Chemical Bonding 1. An ELECTROSTATIC FORCE is All chemical bonding is based on the following relationships of electrostatics: The greater the distance between

More information

Unit 5: Bonding. Place a checkmark next to each item that you can do. If a sample problem is given, complete it as evidence.

Unit 5: Bonding. Place a checkmark next to each item that you can do. If a sample problem is given, complete it as evidence. Unit 5: Bonding Place a checkmark next to each item that you can do. If a sample problem is given, complete it as evidence. Intramolecular Forces: 1. I can define intramolecular forces and intermolecular

More information

What determines whether a substance will be a solid, liquid, or gas? Thursday, April 24, 14

What determines whether a substance will be a solid, liquid, or gas? Thursday, April 24, 14 What determines whether a substance will be a solid, liquid, or gas? Answer: The attractive forces that exists between its particles. Answer: The attractive forces that exists between its particles. For

More information

Problem set #6. 1. Which of the following represent the Lewis structure fors?

Problem set #6. 1. Which of the following represent the Lewis structure fors? Problem set #6 1. Which of the following represent the Lewis structure fors?. Which of the following statements is TRUE? A covalent bond is formed through the transfer of electrons from one atom to another.

More information

***Occurs when atoms of elements combine together to form compounds.*****

***Occurs when atoms of elements combine together to form compounds.***** CHEMICAL BONDING ***Occurs when atoms of elements combine together to form compounds.***** Formation of compounds involve adjustments in the position of one or more valence electrons. PE is lower in bonded

More information

Chemical Bonding I: Covalent Bonding. How are atoms held together in compounds?

Chemical Bonding I: Covalent Bonding. How are atoms held together in compounds? I: Covalent Bonding How are atoms held together in compounds? IONIC or COVALENT bonds or forces For most atoms, a filled outer shell contains 8 electrons ----- an octet Atoms want to form octets when they

More information

Chapter 10: Chemical Bonding II: Molecular Shapes; VSEPR, Valence Bond and Molecular Orbital Theories

Chapter 10: Chemical Bonding II: Molecular Shapes; VSEPR, Valence Bond and Molecular Orbital Theories C h e m i s t r y 1 A : C h a p t e r 1 0 P a g e 1 Chapter 10: Chemical Bonding II: Molecular Shapes; VSEPR, Valence Bond and Molecular Orbital Theories Homework: Read Chapter 10: Work out sample/practice

More information

1. What is a chemical bond? 2. What is the octet rule? Why do atoms in bonding follow it?

1. What is a chemical bond? 2. What is the octet rule? Why do atoms in bonding follow it? Name: Date: Chemistry ~ Ms. Hart Class: Anions or Cations 1. What is a chemical bond? 2. What is the octet rule? Why do atoms in bonding follow it? 3. What are oxidation numbers? How do we find them? 4.

More information

Chapter 6 PRETEST: Chemical Bonding

Chapter 6 PRETEST: Chemical Bonding Chapter 6 PRETEST: Chemical In the space provided, write the letter of the term or phrase that best completes each statement or best answers each question. 1.The charge on an ion is a. always positive.

More information

Electrons and Molecular Forces

Electrons and Molecular Forces Electrons and Molecular Forces Chemistry 30 Ms. Hayduk Electron Configuration Atomic Structure Atomic Number Number of protons in the nucleus Defines the element Used to organize the periodic table 1 Bohr

More information

DIFFERENT TYPES OF INTEMOLECULAR FORCES INTERMOLECULAR FORCES

DIFFERENT TYPES OF INTEMOLECULAR FORCES INTERMOLECULAR FORCES DIFFERENT TYPES OF INTEMOLECULAR FORCES Do all the exercises in your studyguide COMPARISON OF THE THREE PHASES OF MATTER. Matter is anything that occupy space and has mass. There are three states of matter:

More information

Downloaded from

Downloaded from Remedial action plan :- Chemical bonding # focus on important topic 1. Octet rule 2. Lewis structure Q.7. The skeletal structure of CH3COOH as shown below is correct, but some of the bonds are shown incorrectly.

More information

Chapter 9 The Shapes of Molecules Cocaine

Chapter 9 The Shapes of Molecules Cocaine Chapter 9 The Shapes of Molecules 1 Cocaine 10.1 Depicting Molecules & Ions with Lewis Structures 2 Number of Covalent Bonds 3 The number of covalent bonds can be determined from the number of electrons

More information

Electonegativity, Polar Bonds, and Polar Molecules

Electonegativity, Polar Bonds, and Polar Molecules Electonegativity, Polar Bonds, and Polar Molecules Some Definitions Electronegativity: the ability of an atom to attract bonding electrons to itself. Intramolecular forces: the attractive force between

More information

Life Science 1a Review Notes: Basic Topics in Chemistry

Life Science 1a Review Notes: Basic Topics in Chemistry Life Science 1a Review Notes: Basic Topics in Chemistry Atomic Structure and the Periodic Table The history of the discovery of the atom will be left for you to read in the textbook. What are atoms? What

More information

Bent linear trigonal planar trigonal pyramidal Polar nonpolar nonpolar polar Sp 3 sp sp 2 sp 3

Bent linear trigonal planar trigonal pyramidal Polar nonpolar nonpolar polar Sp 3 sp sp 2 sp 3 Name period ap chemistry unit 3 worksheet 1. What are structural isomers? Draw two isomers of pentane. Compounds with the same formula but different structures. See in class 2. give the formula for each

More information

Chemical Bonding II: Molecular Geometry and Hybridization of Atomic Orbitals

Chemical Bonding II: Molecular Geometry and Hybridization of Atomic Orbitals Chemical Bonding II: Molecular Geometry and Hybridization of Atomic Orbitals 1 Chemical Bonding II Molecular Geometry (10.1) Dipole Moments (10.2) Valence Bond Theory (10.3) Hybridization of Atomic Orbitals

More information

Chapter 9 Bonding. Dr. Sapna Gupta

Chapter 9 Bonding. Dr. Sapna Gupta Chapter 9 Bonding Dr. Sapna Gupta Lewis Dot Symbol Lewis dot symbols is a notation where valence electrons are shown as dots. Draw the electrons symmetrically around the sides (top, bottom, left and right)

More information

General and Inorganic Chemistry I.

General and Inorganic Chemistry I. General and Inorganic Chemistry I. Lecture 1 István Szalai Eötvös University István Szalai (Eötvös University) Lecture 1 1 / 29 Outline István Szalai (Eötvös University) Lecture 1 2 / 29 Lewis Formulas

More information

11/14/2014. Chemical Bonding. Richard Philips Feynman, Nobel Laureate in Physics ( )

11/14/2014. Chemical Bonding. Richard Philips Feynman, Nobel Laureate in Physics ( ) Chemical Bonding Lewis Theory Valence Bond VSEPR Molecular Orbital Theory 1 "...he [his father] knew the difference between knowing the name of something and knowing something" Richard Philips Feynman,

More information

Covalent Bonding and Molecular Structures

Covalent Bonding and Molecular Structures CHAPTERS 9 AND 10 Covalent Bonding and Molecular Structures Objectives You will be able to: 1. Write a description of the formation of the covalent bond between two hydrogen atoms to form a hydrogen molecule.

More information

Kinetic Molecular Theory of Gases used to account for Ideal Gas Behavior when gases approach high temperatures and low pressures

Kinetic Molecular Theory of Gases used to account for Ideal Gas Behavior when gases approach high temperatures and low pressures LIQUIDS AND SOLIDS Kinetic Molecular Theory of Gases used to account for Ideal Gas Behavior when gases approach high temperatures and low pressures GASES are very different from solids and liquids. We

More information

51. Pi bonding occurs in each of the following species EXCEPT (A) CO 2 (B) C 2 H 4 (C) CN (D) C 6 H 6 (E) CH 4

51. Pi bonding occurs in each of the following species EXCEPT (A) CO 2 (B) C 2 H 4 (C) CN (D) C 6 H 6 (E) CH 4 Name AP Chemistry: Bonding Multiple Choice 41. Which of the following molecules has the shortest bond length? (A) N 2 (B) O 2 (C) Cl 2 (D) Br 2 (E) I 2 51. Pi bonding occurs in each of the following species

More information

WKS Name Intermolecular Forces Period Date

WKS Name Intermolecular Forces Period Date WKS Name Intermolecular orces Period Date Introduction: Substances exist in three states of matter: solids, liquids and gases. We know that molecules are... (a) far apart in gases; (b) close together,

More information

2011, Robert Ayton. All rights reserved.

2011, Robert Ayton. All rights reserved. Chemical Bonding Outline 1. Lewis Dot Structures 2. Bonds 3. Formal Charges 4. VSEPR (Molecular Geometry and Hybridzation) 5. Common Resonance Structures and Dimerization Review 1. Lewis Dot Structures

More information

Valence Bond Theory - Description

Valence Bond Theory - Description Bonding and Molecular Structure - PART 2 - Valence Bond Theory and Hybridization 1. Understand and be able to describe the Valence Bond Theory description of covalent bond formation. 2. Understand and

More information

SL Score. HL Score ! /30 ! /48. Practice Exam: Paper 1 Topic 4: Bonding. Name

SL Score. HL Score ! /30 ! /48. Practice Exam: Paper 1 Topic 4: Bonding. Name Name Practice Exam: Paper 1 Topic 4: Bonding SL SL Score! /30 HL Score! /48 1. What is the correct Lewis structure for hypochlorous acid, a compound containing chlorine, hydrogen and oxygen? A. B. C. D.

More information

Chapter 9 Molecular Geometry and Bonding Theories

Chapter 9 Molecular Geometry and Bonding Theories Chapter 9 Molecular Geometry and Bonding Theories molecular shapes the VSEPR model molecular shape and molecular polarity covalent bonding and orbital overlap hybrid orbitals multiple bonds 9.1 Molecular

More information

Structures, Shapes and Polarity. of Molecules. Level 2 recap: - Polar and non polar bonds - Lewis diagrams - Lone pairs - Shapes - Polarity

Structures, Shapes and Polarity. of Molecules. Level 2 recap: - Polar and non polar bonds - Lewis diagrams - Lone pairs - Shapes - Polarity Structures, Shapes and Polarity Level 2 recap: - Polar and non polar bonds - Lewis diagrams - Lone pairs - Shapes - Polarity of Molecules Do now: Brainstorm what you know/remember about these L2 concepts

More information

General Chemistry Multiple Choice Questions Chapter 5

General Chemistry Multiple Choice Questions Chapter 5 1 Which of the following possesses a polar covalent bond? a NaCl (s) b O 2 (g) c Al (s) d SO 2 (g) 5.1 2 Which is the most electronegative atom? a Cl b Se c Al d Ca 3 Which of the following molecules has

More information

A REVIEW OF GENERAL CHEMISTRY: ELECTRONS, BONDS AND MOLECULAR PROPERTIES

A REVIEW OF GENERAL CHEMISTRY: ELECTRONS, BONDS AND MOLECULAR PROPERTIES A REVIEW OF GENERAL CEMISTRY: ELECTRONS, BONDS AND MOLECULAR PROPERTIES A STUDENT SOULD BE ABLE TO: 1. Draw Lewis (electron dot and line) structural formulas for simple compounds and ions from molecular

More information

Carbon Compounds. Electronegativity. Chemical Bonding Part 1c. Bond Polarity. Bond Polarity

Carbon Compounds. Electronegativity. Chemical Bonding Part 1c. Bond Polarity. Bond Polarity Electronegativity Carbon Compounds Electronegativity is a relative measure on the pull of electrons by an atom in a bond. Most bonds fall somewhere in between and these bonds are considered polar. Chemical

More information

Chemical Bonding AP Chemistry Ms. Grobsky

Chemical Bonding AP Chemistry Ms. Grobsky Chemical Bonding AP Chemistry Ms. Grobsky What Determines the Type of Bonding in Any Substance? Why do Atoms Bond? The key to answering the first question are found in the electronic structure of the atoms

More information

A. Incorrect. The electronegativity difference isn t great enough to be an ionic bond.

A. Incorrect. The electronegativity difference isn t great enough to be an ionic bond. MCAT General Chemistry Problem Drill 19: Chemical Bonding Question No. 1 of 10 1. What type of bond is H O? Question #01 (A) Ionic (B) Covalent (C) Polar Covalent (D) Metallic (E) Semi-metallic The electronegativity

More information

* one of these choices is not used

* one of these choices is not used IONIC BONDING REVIEW WORKSHEET Part 1 - Complete each of the following sentences by filling in the appropriate word or phrase from the list below. negative noble gas octet anion positive electrons ions

More information

6.1 Intro to Chemical Bonding Name:

6.1 Intro to Chemical Bonding Name: 6.1 Intro to Chemical Bonding Name: A. Chemical bond Favored by nature because: 3 main types of bonds 1. 2. 3. B. Ionic Bonds C. Covalent Bonds D. Metallic Bond E. Bond Determination RECALL: Electronegativity

More information

6. The molecule which would form a trigonal planar shape would be: a) CH 3 Cl b) SiOF 2 c) NH 3 d) PF 4

6. The molecule which would form a trigonal planar shape would be: a) CH 3 Cl b) SiOF 2 c) NH 3 d) PF 4 A. Multiple Choice. Indicate the correct response on the Scantron card provided. 1. Hydrogen bonding can occur between water molecules and which other substance: a) Carbon tetrachloride b) carbon dioxide

More information

Chap 10 Part 4Ta.notebook December 08, 2017

Chap 10 Part 4Ta.notebook December 08, 2017 Chapter 10 Section 1 Intermolecular Forces the forces between molecules or between ions and molecules in the liquid or solid state Stronger Intermolecular forces cause higher melting points and boiling

More information

Topic 5: Structure and Shape

Topic 5: Structure and Shape Topic 5: Structure and Shape Lewis structures Lewis structures are a means of determining stable electron arrangements in molecules. It considers the valence electrons of an atom only. A stable arrangement

More information

Chapter 9. Ionic Compounds

Chapter 9. Ionic Compounds Chapter 9 Bonding Ionic Compounds Formed between metal and nonmetal Ionic solids: ions are arranged in a regular lattice Strong forces: attraction of ions for each other 1 Lattice Energy A measure of the

More information

Class XI: Chemistry Chapter 4: Chemical Bonding and Molecular Structure Top Concepts

Class XI: Chemistry Chapter 4: Chemical Bonding and Molecular Structure Top Concepts 1 Class XI: Chemistry Chapter 4: Chemical Bonding and Molecular Structure Top Concepts 1. The attractive force which holds together the constituent particles (atoms, ions or molecules) in chemical species

More information

MCAT General Chemistry Discrete Question Set Periodic Table - Properties

MCAT General Chemistry Discrete Question Set Periodic Table - Properties MCAT General Chemistry Discrete Question Set Periodic Table - Properties Question No. 1 of 10 1: What type of bond is H O? Question #01 A. Ionic B. Covalent C. Polar Covalent D. Metallic A: Incorrect.

More information

AP Chemistry. Unit #7. Chemical Bonding & Molecular Shape. Zumdahl Chapters 8 & 9 TYPES OF BONDING BONDING. Discrete molecules formed

AP Chemistry. Unit #7. Chemical Bonding & Molecular Shape. Zumdahl Chapters 8 & 9 TYPES OF BONDING BONDING. Discrete molecules formed AP Chemistry Unit #7 Chemical Bonding & Molecular Shape Zumdahl Chapters 8 & 9 TYPES OF BONDING BONDING INTRA (Within (inside) compounds) STRONG INTER (Interactions between the molecules of a compound)

More information

Unit-3 Chemical Bonding Practice Exam

Unit-3 Chemical Bonding Practice Exam Name: Class: _ Date: _ Unit-3 Chemical Bonding Practice Exam Multiple Choice - NO CALCULATORS, show your work and justify your answers. 1. The concentration of a red colored solution of cobalt ions needs

More information

Unit 6: Molecular Geometry

Unit 6: Molecular Geometry Unit 6: Molecular Geometry Molecular Geometry [6-5] the polarity of each bond, along with the geometry of the molecule determines Molecular Polarity. To predict the geometries of more complicated molecules,

More information

Chemical Bonding -- Lewis Theory (Chapter 9)

Chemical Bonding -- Lewis Theory (Chapter 9) Chemical Bonding -- Lewis Theory (Chapter 9) Ionic Bonding 1. Ionic Bond Electrostatic attraction of positive (cation) and negative (anion) ions Neutral Atoms e - transfer (IE and EA) cation + anion Ionic

More information

Chemistry Chapter 6 Test Review

Chemistry Chapter 6 Test Review Chemistry Chapter 6 Test Review Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A mutual electrical attraction between the nuclei and valence electrons

More information

Chemical Bonds. Chapter 6

Chemical Bonds. Chapter 6 Chemical Bonds Chapter 6 1 Ch. 6 Chemical Bonding I. How and Why Atoms Bond A. Vocabulary B. Chemical Bonds - Basics C. Chemical Bonds Types D. Chemical Bonds Covalent E. Drawing Lewis Diagrams F. Bond

More information

1. Sodium nitrite is an ionic compound containing a polyatomic ion. Answer the following questions relative to nitrite.

1. Sodium nitrite is an ionic compound containing a polyatomic ion. Answer the following questions relative to nitrite. Ch 10-11 Practice Problems - KEY The following problems are intended to provide you with additional practice in preparing for the exam. Questions come from the textbook, previous quizzes, previous exams,

More information

Chapter 9 Molecular Geometry and Bonding Theories

Chapter 9 Molecular Geometry and Bonding Theories Lecture Presentation Chapter 9 Geometry James F. Kirby Quinnipiac University Hamden, CT Shapes Lewis Structures show bonding and lone pairs, but do not denote shape. However, we use Lewis Structures to

More information

Chemistry 1A Spring 1999 Exam #4 KEY Chapters 9 & 10

Chemistry 1A Spring 1999 Exam #4 KEY Chapters 9 & 10 H 2.2 Chemistry 1A Spring 1999 Exam #4 KEY Chapters 9 & 10 Electronegativities Li Be B C N O F 0.98 1.57 2.04 2.55 3.04 3.44 3.98 Na Mg Al Si P S Cl 0.93 1.31 1.61 1.9 2.19 2.58 3.16 K Ca Ga Ge As Se Br

More information

Downloaded from

Downloaded from Points to Remember Class: XI Chapter Name: Chemical Bonding and Molecular Structure Top Concepts 1. The attractive force which holds together the constituent particles (atoms, ions or molecules) in chemical

More information

Bonding Free Response Examples:

Bonding Free Response Examples: Bonding ree Response Examples: 1999 D Answer the following questions using principles of chemical bonding and molecular structure. (a) onsider the carbon dioxide molecule, 2, and the carbonate ion, 3 2.

More information

VSEPR. Valence Shell Electron Pair Repulsion Theory

VSEPR. Valence Shell Electron Pair Repulsion Theory VSEPR Valence Shell Electron Pair Repulsion Theory Vocabulary: domain = any electron pair or bond (single, double or triple) is considered one domain. bonding pair = shared pair = any electron pair that

More information

Chapter 6. Table of Contents. Section 1 Covalent Bonds. Section 2 Drawing and Naming Molecules. Section 3 Molecular Shapes. Covalent Compounds

Chapter 6. Table of Contents. Section 1 Covalent Bonds. Section 2 Drawing and Naming Molecules. Section 3 Molecular Shapes. Covalent Compounds Covalent Compounds Table of Contents Section 1 Covalent Bonds Section 2 Drawing and Naming Molecules Section 3 Molecular Shapes Section 1 Covalent Bonds Bellringer Make a list of the elements that form

More information

Name Date Class. covalent bond molecule sigma bond exothermic pi bond

Name Date Class. covalent bond molecule sigma bond exothermic pi bond Date Class 8 Covalent Bonding Section 8.1 The Covalent Bond In your textbook, read about the nature of covalent bonds. Use each of the terms below just once to complete the passage. covalent bond molecule

More information

Name Date Class MOLECULAR COMPOUNDS. Distinguish molecular compounds from ionic compounds Identify the information a molecular formula provides

Name Date Class MOLECULAR COMPOUNDS. Distinguish molecular compounds from ionic compounds Identify the information a molecular formula provides 8.1 MOLECULAR COMPOUNDS Section Review Objectives Distinguish molecular compounds from ionic compounds Identify the information a molecular formula provides Vocabulary covalent bond molecule diatomic molecule

More information