1. Lesson 5: Aim and Objectives Aim: How are ionic bonds differently depicted than covalent bonds? Objectives: 1.Learn to draw Lewis Dot Structures for ionic compounds. 2.In terms of electrical conductivity, how do ionic bonds differ from covalent bonds.

2. Lewis Dot Structure Covalent Bonds

3. Lewis Dot Structure Ionic Compounds

4. Write the Lewis Dot Structure Na and Cl K and F Ca and O Mg and Cl Ca and I Al and Br Al and O

5. Writing the Lewis Dot Structure 1.Is it covalent or ionic? 2.If it is covalent, electrons have to be drawn… 3.__________ electrons per bond 4.Add up all the electrons to equal… 5.If it is ionic, you have to figure out how many positive ions and how many negative ions you need. 6.You must draw ______________ and the positive ion has _________ electrons and the negative ion has __________ electrons.

6. Metallic Bond e-

7. Metals and Electrical Conductivity http://cd1.edb.hkedcity.net/cd/science/chemi stry/resource/animations/metallic_bond/met allic.html http://cd1.edb.hkedcity.net/cd/science/chemi stry/resource/animations/metallic_bond/met allic.html http://projectsharetexas.org/resource/chemic al-bonding-metallic-bonds-ontrack-chemistry- module-3-lesson-5 http://projectsharetexas.org/resource/chemic al-bonding-metallic-bonds-ontrack-chemistry- module-3-lesson-5 http://www.mhhe.com/physsci/chemistry/ess entialchemistry/flash/molvie1.swf http://www.mhhe.com/physsci/chemistry/ess entialchemistry/flash/molvie1.swf http://www.northland.cc.mn.us/biology/Biolo gy1111/animations/dissolve.html

8. Ionic Compounds and Electrical Conductivity http://bcs.whfreeman.com/thelifewire/content/chp 02/02020.html http://highered.mheducation.com/olcweb/cgi/plugi npop.cgi?it=swf::100%::100%::/sites/dl/free/00725 12644/117354/rev01_Ionic_vs_Covalent.swf::Ionic %20vs.%20Covalent%20Bonding http://www.mhhe.com/physsci/chemistry/essential chemistry/flash/molvie1.swf

9. Homework 5 Define the following: 1.Hydrogen bonds 2.Dipole-dipole interactions 3.Van der Waals forces (Dispersion forces)