SHS Chemistry 2014 2015 Unit 6 Bonding Monday

SHS Chemistry 2014 -2015 Unit 6: Bonding

Monday, January 26 LEARNING TARGET I will be able to explain semester 2 policies and procedures and form questions based on observations. WARM UP Read the syllabus silently in its entirety. Pay close attention the sections that outlines how grades will be calculated for semester 2.

Second Semester Updates �Weekly Quiz Days Quizzes will be given at least once per week Notes will be checked on this day Independent Practice will be turned in �Grades: 50% Quizzes and Tests � 50% Independent Practice and Notes

Today- Revisiting Friday’s Lab

Tuesday, January 21 LEARNING TARGET I will be able to perform learning targets A 1, A 2, A 3, B 1, B 2, B 3, and B 4. WARM UP Copy today’s learning targets into your notes organizer from your bonding learning targets document.

Quiz Date: Thursday, January 29 Independent Practice Activity Suggested Date to Complete (after class) Learning Target A: Types of Compounds Tuesday, January 27 Learning Target B: Lewis Structures for Simple Covalent Compounds Learning Target C: Lewis Structures for Complex Covalent Compounds Tuesday, January 27 Wednesday, January 28

Roles For Today �Seat B- Manager �Seat C- Reader �Seat D- Document Controller (responsible for clean up at the end of class) �Seat A- Spokesperson

Ionic vs. Covalent Compounds (Independent) �Individually write down at least one property of an ionic compound at least one property of a covalent compound. �Write each property on its own post-it note. �It can be from the lab or the reading.

Ionic vs. Covalent Compounds (small group) �As a group… Go around the table in a circle, starting with seat A and ending with seat D. Read one of your properties out loud to your group, and place it in the proper column of the chart. Discuss any disagreements as they occur. Continue until you have shared all of the properties your group came up with.

Ionic vs. Covalent Properties (whole class) �When called on, the spokesperson at your table will share one of your group’s properties. Do not tell the class whether it is ionic or covalent. �I will give you a few seconds to discuss, then call on the manager from another table to say what compound the property represents.

Properties of Ionic and Covalent Compounds Ionic Compounds Transfer Electrons Metal and Nonmetal Soluble in water Conducts electricity when dissolved in water Extremely high melting point and boiling point Covalent Compounds Share Electrons Only Nonmetals Sometimes soluble in water Does not conduct electricity Low melting and boiling point

Modeling Lewis Structures �Use the kit at your table to construct a diagram of Carbon’s valence electrons. �Hydrogen �Now build the covalent compound CH 4

Modeling Lewis Structures -I Bonding Pair Lewis Structure

The Octet Rule

Modeling Lewis Structures -II Non-Bonding Pair

Modeling Lewis Structures-III Show non-bonding pairs

Lewis Structures - Tips �Center Atom – Carbon is always a center atom in a compound �Hydrogen is always on the outside �Draw valence electrons for all atoms �Start with the center atom �Then move to the other atoms and place them around looking for single electrons to bond to �When you satisfy the octet rule on all atoms you are done.

Let’s Try One More

Diatomic Elements �Take out your periodic table and a highlighter or colored pencil. �Diatomic elements are elements that exist naturally as two atoms of the same element covalently bonded together into a molecule.

7 Diatomic Elements

Wrap Up �Covalent and Ionic Compound Properties �Lewis Structures Octet Rule Valence electrons on an atom from the Periodic Table Draw Lewis structures for single bond compounds Identify bonding and non-bonding electron pairs �Diatomic Elements

Wednesday, January 28 LEARNING TARGET I will be able to: 1. Draw Lewis Structures for compounds with double & triple bonds 2. Predict type of bonds that will form based on total number of valence electrons. WARM UP Draw a Lewis Structure for I 2

Modeling Complex Lewis Structures THE RULES �all atoms except hydrogen should have 8 valence electrons �you must include all valence electrons that each atom brings into the bond �you cannot add electrons �elements can form single, double, or triple bonds

CO 2

O 2

N 2

C 2 H 2 H C C H

Wednesday, January 28 LEARNING TARGET I will be able to: 1. Draw Lewis Structures for compounds with double & triple bonds 2. Predict type of bonds that will form based on total number of valence electrons.

Thursday, January 29 LEARNING TARGET I will be able to: 1. describe resonance structures 2. draw resonance structures for polyatomic ions WARM UP �Make one pile of homework, and a separate pile of everyone’s notes.

Independent Practice Questions?

Quiz Date: Friday, February 6 Independent Practice Activity Suggested Date to Complete (after class) Learning Target D: Lewis Structures for Polyatomic Ions Friday, January 30 Learning Target E: VSEPR Thursday , February 5

Lewis Structures for Polyatomic Ions THE RULES �all atoms except hydrogen should have 8 valence electrons � you must include all valence electrons that each atom brings into the bond �you cannot add extra electrons (unless there is a charge) �elements can form single, double, or triple bonds �Lewis structures for charged particles are placed in brackets, with the charge as a superscript on the outside

Polyatomic Lewis Structures -OH-1

Polyatomic Lewis Structures-NO 3 -1

Polyatomic Lewis Structures-CO 3 -2

Wrap Up- Lewis Structures for Polyatomic Ions LEARNING TARGET I will be able to: 1. describe resonance structures 2. draw resonance structures for polyatomic ions

Quiz/Independent Practice

Friday, January 30 LEARNING TARGET I will practice creating Lewis Structures on paper. WARM UP Be sure you have back your quiz and your independent practice paper.

Quiz Review

Video Review

Lewis Structure Practice