Cornell Notes Topic: Sect. 8.5: Electronegativity and Polarity

Slides:

Advertisements

Similar presentations

IX. 3. Molecular Polarity p Polar Molecules The bond between atoms with different electronegativities gives rise to a dipole Dipole-dipole.

Advertisements

Bell Ringer Tuesday 11/05/13 Objective 5 minutes!

Topic: Polarity in Covalent Bonds Do Now: What is the difference between a polar molecule and nonpolar molecule?

Intramolecular Forces vs Intermolecular Forces

Section 8.5 Electronegativity and Polarity Describe how electronegativity is used to determine bond type. electronegativity: the relative ability of an.

bond formed by the giving or Ionic Bond bond formed by the giving or taking of electrons.

Polarity of Bonds Molecular Polarity. Equal Pull on Electrons If there is no difference in the electronegativity of the atoms forming a covalent bond,

Sec. 8.5: Electronegativity and Bond Polarity

Electronegativity and Polarity.  Describe how electronegativity is used to determine bond type.  Compare and contrast polar and nonpolar covalent bonds.

INTERMOLECULAR FORCES

Basic Chemistry Copyright © 2011 Pearson Education, Inc. Chapter 10 Structures of Solids and Liquids 10.4 Attractive Forces between Particles 1.

Chemical Bonding. Chemical Forces Hold Atoms Together in Molecules Three types of chemical forces Ionic Bonds – electrons exchanged to form ions Covalent.

Chemical Bonding Chapter 8 Sections 1 & 2. A chemical bond is: a force of attraction between any two atoms in a compound. Bonding between atoms occurs.

The Name is Bond Chemical Bond!.

Section 3: Covalent Bonds

Covalent Bonds. Form when two or more non-metal atoms SHARE electrons. There is no transfer of electrons.

Polarity How does electronegativity affect the polarity of a covalent bond? How does the shape of a molecule affect the polarity of a molecule?

Bond and Molecular Polarity Courtesy of Mr. Christopherson.

Bell ringer 2 nd period (Molly, Timmy)(Kiersten, Michael)(Caitlin, John)(Kaitlyn, Ariel)( Morgan, Sherman) (Cheyenne, Emily)(Racheal, Courtney M)(Jenna,

Electron Affinities Tendency of an atom to accept an electron Increases across a period (except 8A) Decreases down a family Greatest affinity = fluorine.

Electronegativity and Polarity Section 9-5. Electron affinity Tendency of atom to accept electron Usually increases as atomic numbers increase within.

Bond Polarity Connecting to you Snow covers approximately 23% of Earth’s surface. Each individual snowflake is formed from as many as 100 snow crystals.

Chemistry Chapter 9 Notes #4. Chapter 9 – Quick Review Covalent Bonds –Sharing of electrons Naming Molecules Writing Formulas Naming Acids/Writing Formulas.

Why do some solids dissolve in water but others do not? Why are some substances gases at room temperature, but others are liquid or solid? The answers.

Chapter 13 Notes #3 Intermolecular Forces

INTERMOLECULAR FORCES (bonds) Occur between molecules Weaker than intramolecular forces.

Polarity. Compound Review  Compound: a chemical combination of two or more elements  Why do elements chemically combine?  They want to achieve full.

Polarity. Polar Covalent Remember ionic bonds transfer electrons, while covalent bonds share electrons. All atoms do not attract their electrons in a.

Chemical Bonding Chapter 4 Section 1. A chemical bond is: a force of attraction between any two atoms in a compound. Bonding between atoms occurs because.

Polar Bonds and Molecules. Bond Polarity  Not all covalent bonds are equal in their sharing of electrons  A lot depends on the type of atoms involved.

Covalent Bonds. Form when two or more non-metal atoms SHARE electrons. There is no transfer of electrons.

Why do some solids dissolve in water but others do not? Why are some substances gases at room temperature, but others are liquid or solid? The answers.

What are Intermolecular forces? Intermolecular forces are weak forces of attraction between some covalent molecules. These attractions are responsible.

 shared bonding electrons pairs are pulled (as in a “tug-of-war”) between atoms  results in an equal or unequal sharing.

A chemical bond’s character is related to each atom’s attraction for the electrons in the bond. Section 5: Electronegativity and Polarity K What I Know.

Lecture 44 Electronegativity and Polarity Ozgur Unal

Materials Science Lesson 8.

Chemical Bonds Types of Bonds

Polarity of Covalent Bonds

Intermolecular Forces (IMF)

Electronegativity and Forces

4.3 Electronegativity and Polarity 4.5 Molecular Polarity

Polarity within a Molecule

Section 2: Intermolecular Attractive Forces

Which atoms have the highest electronegativity in these molecules?

Do Now & Announcements Take out note packet/HW to be checked Take Quiz

Fall 2013 Exam III 1. c 9. e 16. (next slides)

Electronegativity and Polarity

Polar Bonds and Molecules Chapter 8.4

What is the role of electronegativity?

COVALENT BONDS.

Bonding continued.

Electronegativity and Polarity

8.4 Bond Polarity Bonding Ionic Covalent.

Real Molecule Shapes Any molecule containing only 2 atoms has a linear shape. To predict shapes of molecules with more than 2 atoms we use VESPR theory.

Polarity and Electronegativity

Electronegativity -Electronegativity increases from left to right and increases from top to bottom.

Electronegativity and Polarity

Intermolecular Forces

Chapter 6 Chemical Bonding

INTERMOLECULAR FORCES

Chapter 8 Covalent Bonding 8.4 Polar Bonds and Molecules

INTERMOLECULAR FORCES

Physical Science Covalent Bonding.

Electronegativity and Polarity

Forces of Attraction Chapter 13-2.

Forces of Attraction Lecture

Electronegativity and Polarity

Presentation transcript:

Cornell Notes Topic: Sect. 8.5: Electronegativity and Polarity Date: 2/14/2012 (Answer the 11 questions from on the following slides in your notebook. Use Section 8.5 of the textbook.)

Section 8.5 – Electronegativity and Polarity Guided Reading Questions pg 265 What is electron affinity? What type of atom will have the highest electron affinity? What is electronegativity? Use Figure 8.20: Which atom is the most electronegative? Which atom is the least electronegative?

Section 8.5 – Electronegativity and Polarity pg 266 How can the character of any bond be determined (ie. How can you tell if a bond is ionic or covalent based upon electronegativity)? What is a polar covalent bond? When does it occur? Use Figure 8.21: What percent ionic character does HCl have vs. CaO? What is the only non-polar covalent bond in this graph?

Section 8.5 – Electronegativity and Polarity pg 267 What happens to a shared electron pair when a covalent bond forms? (Molecular polarity section) What two types of covalent bonds are there? Which type of covalent bond is attracted to an electric field? Why? Compare and Contrast H2O and CCl4; which molecule is polar, which is non-polar and why? pg 268: What are intermolecular forces? Are they weaker or stronger than bonds?