Lewis Structures.

Slides:

Advertisements

Similar presentations

Chemical Bonding and Interactions

Advertisements

MOLECULAR SHAPE HOW DOES SHAPE AND POLARITY DETERMINE FUNCTION AND PROPERTIES OF MOLECULES?

Aim: How to distinguish between ionic and covalent bonding? Two major categories of compounds are ionic and molecular (covalent) compounds. Metals tend.

Covalent bonding Grade 9 Chemistry Starter What ions do Chlorine form? Imagine you have 2 chlorine ions – how could they help EACH OTHER to reach a stable.

Chapter Eight BONDING: GENERAL CONCEPTS. Copyright © Houghton Mifflin Company. All rights reserved.8–28–2 Questions to Consider What is meant by the term.

Chemical Bonding: The Covalent Bond Model. Chemical Bonds Forces that hold atoms to each other within a molecule or compound.

Advanced Chemistry Ms. Grobsky. Bonding is the interplay between interactions between atoms Energetically favored Electrons on one atom interacting with.

Bond Energy Bond Energy (BE): The energy required to break a bond. Bond Energy is important, bonds will be created if it allows the system (two or more.

B. Ionic bonding and Structures of Ionic Compounds

VSEPR Model And Hybridization. VSEPR Model Valence Shell Electron Pair Repulsion Model a simple model that allows for the prediction of the approximate.

Electron Dot and Structual Diagrams for Covalent Compounds.

Chapter 11: Chemical Bonding Chemistry 1020: Interpretive chemistry Andy Aspaas, Instructor.

Chapter 11: Chemical Bonding Chemistry 1020: Interpretive chemistry Andy Aspaas, Instructor.

Copyright©2000 by Houghton Mifflin Company. All rights reserved. 1 Chemistry FIFTH EDITION by Steven S. Zumdahl University of Illinois.

Chemical Bonding. Chemical Bond The forces that hold groups of atoms together and make them function as a unit Bonding involves only the valence electrons.

Covalent Bonds.  Octet rule – all atoms want to have 8 electrons in their outer shell  Exception – helium (2)  Noble gases – very stable  Binary ionic.

Covalent Bonding Covalent bonding is the type of bonding that occurs between two non- metallic elements. Non-metallic elements do no form ions when they.

Bonding. A Chemical Bond The forces that hold groups of atoms together and make them function as a unit Bonding involves only the valence electrons There.

Section 12.1 Characteristics of Chemical Bonds 1.To learn about ionic and covalent bonds and explain how they are formed 2.To learn about the polar covalent.

Bellringer: Copy and Answer 1.What is an “ion”? 2.Why do ions form? 3.Ionic bonds are formed between oppositely-charged particles, positively- charged.

Chapter 9 Covalent Bonds pp Review.. What is a chemical bond? What is a chemical bond? Force that holds two atoms togetherForce that holds.

Lewis Structure A representation of a molecule that shows how the valence electrons are arranged among the atoms in the molecule based on the idea that.

CHEMICAL BONDING The most important property of an is how it combines.

Bonding. Ionic Bonding Chemical bonding that results from the electrical attraction between cations and anions is called ionic bonding. Cations give up.

Chapter 12 Chemical Bonding. Chapter 12 Table of Contents 12.1 Types of Chemical Bonds (see Part 1) 12.2 Electronegativity (see Part 1) 12.3 Bond Polarity.

Unit 7 Changes in matter Chapter 19 Molecules and compounds.

Today’s Do Now 1. Write the formula for chlorine trifluoride. 2. Write the name of NO 2 3. Draw the Lewis dot diagram for Hydrogen. 4. Draw the Lewis dot.

1 Compounds and Their Bonds Octet Rule and Ions Copyright © 2005 by Pearson Education, Inc. Publishing as Benjamin Cummings.

Chemical Bonding Lewis Dot Diagrams VSEPR

Types of chemical bonds

Bonding: General Concepts Continued.

Calderglen High School

You know the drill!

Ionic Bond A sodium atom loses an electron from its last shell and forms a cation. The cation, now, has the neon configuration, [Ne]. This configuration.

Section 4: Molecular Shapes

Chemical Bonding.

Copy the following statements

Covalent Bonding.

Materials Science Lesson 5.

Chemical Bonding.

Electron Dot and Structual Diagrams for Covalent Compounds

Drawing Molecules and Shapes

Lewis Dot Structures & Covalent Bonding

Chapter 2 The Material World

The Lewis Dot Structure

O = O V___________ S________ E________ P______ R____________

Localized Electron Model

Covalent Bonding.

Chapter 12 Covalent Bonding

Molecular Compounds.

A. Types of Chemical Bonds

The Nature of Covalent Bonding

List facts that you remember about ionic and covalent compounds

Lewis-dot Structures.

Bonding: General Concepts Continued.

Aim: How to distinguish between ionic and covalent bonding?

Lecture 8A - Formation of Covalent (Molecular) Compounds

Valence Shell Electrons are all that matter in bonding.

Chem 162A 1/3/2007 Please Review Chapter 13.

The Covalent Chemical Bond: A Model

Drawing Molecules and Shapes

How Atoms Combine.

Covalent Bonding: Models

Lesson Valence Shell Electron Pair Repulsion Theory (VSEPR)

Lewis Symbols To help us to focus on the valence electrons – those that can participate in bonding - we use Lewis Symbols (in honor of scientist G.N. Lewis)

Lewis Dot Chapter 8 Part 4.

Valence Shell Electron-pair Repulsion model

Lewis Dot & VSPER.

Chemical Bonding with Elements

Presentation transcript:

Lewis Structures

Localized Electron Bonding Model (LE) Assumption: a molecule is composed of atoms that are bound together by sharing pairs of electrons using the atomic orbitals of the bound atoms.

Localized Electron Bonding Model (LE) Parts Description of the valence electron arrangement using Lewis structures Prediction of the geometry using the valence shell electron-pair repulsion (VSEPR) model Description of the type of atomic orbitals used by the atoms to share electrons or hold lone pairs

Lewis Structures What is the most important requirement for the formation of stable compounds? Answer: The elements achieve noble gas electron configurations This requirement applies to both ionic compounds and covalent molecules!

Review Lewis Structures Write Lewis dot diagrams for the following: K Br K+1 Br-1 F Fluoride ion (Draw ionic/covalent diagrams to show lone/bonding pairs.)

Steps for Writing Lewis Structures Found on p.376!!! Examine examples on pp.376-378. Expand: What is the configuration for HCN?