05/09/12 - Dr. Block

AIM: How do the electrons impact our world?

Skills Addressed/Objective: - Compose Lewis Dot Diagrams for Ions- Compose Basic Ionic Formulas- Predict Nobel Gas electron configuration for the elements in an Ionic Compound

Do Now:1. Write the Lewis Dot Diagram for K, Mg, P and S2. Write the Electron Configuration for 2 Nobel Gasses

HW: #4-2: Finish the POGIL “Chemical Formulas and Names of Ionic

Compounds”

05/11 - Quiz #4-2 (Lewis Structures, Ionic Formulas, Energy Relationship to bonding & Nobel Gas Electron Configurations of Ions)

Revised on 05/07/12

For the weeks of 05/07 - 5/1105/07 - Post Unit Exam Review, Identify Periodic Trends as they relate to Simple Ionic Formulas & Predict Ionic Formulas05/08 - No Class05/09 - Ionic Formulas, Nobel e-Config & Lewis Structures 05/10 - No Class05/11 - Quiz & Lab - Ionic Bonding

Announcements05/11 - Quiz #4-2 (Lewis Structures, Ionic Formulas, Energy to bonding & Nobel Gas Electron Configurations of Ions)

Today's Agenda- Go over DN ………..........…...................................…... 10 min- Note the Ionic Tendencies for Metals and Non

Metals...................................................................… 10 min- Compose the Electron Configuration of the

Metal and Non Metal Ions ..................................… 15 min- Compose Lewis Dot Diagrams for Metal and Non

Metal Ions ……….................................................… 10 min- POGIL (Chemical Formulas and Their Name of

Ionic Compounds ……............................................. 40 min- Closure …………….........................……………………. Balance

Do Now Solution1. Write the Lewis Dot Diagram for K, Mg, P and S

2. Write the Electron Configuration for 2 Nobel Gasses

Metals vs. Non Metals

Metals like to lose electrons and become cations. This will alter their electron configuration.

Metal e-Config What is the charge on this cation?

Oxidation Number

Na 2-8-1 +1 1+

Li 2-1

Be 2-2

Ca 2-8-8-2

K 2-8-8-1

Nonmetals (other than the Nobel Gasses) like to gain electrons and become anions. This will alter their electron configuration.

Metal e-Config What is the charge on this cation?

Oxidation Number

F 2-7 -1 1-

O 2-6

P 2-8-5

Cl 2-8-7

Ar 2-8-8

- are the result of a complete transfer of electrons from a metal (cation) to a nonmetal (anion).

- form compounds that take the shape of a crystal lattice.

EX: NaCl

Ion

ic B

on

ds

http://web.jjay.cuny.edu/~acarpi/NSC/5-bonds.htm

Sodium Chloride

Magnesium SulfidePotassium IodideRubidium Chloride

Lithium Fluoride Lithium Bromide

Element

e-Config e-config of ion The Nobel gas it now looks like.

Na 2-8-1 2-8 Ne

O

Ca

Cl

P

When Metals and Nonmetals gain or lose electrons, their electron configuration is altered and they now look like a Nobel Gas.

When Metals and Nonmetals ionize, their Lewis Dot Structure is altered.

Element Dot structure Dot structure of ion Oxidation Number

NaNa Na +1

OO O

Br

Ca

N

Fill in the missing information for the following Ionic Compounds

Formula Name Dot Diagram

NaCl

Potassium Cloride

CaBr2

Iron (III) Iodide

Sodium Nitrate

Mg(MnO4)2

Calcium Hydroxide

Change this to be an activity for composing Lewis Dot Diagrams for Ions

POGIL - Chemical FOrmulas and Names of Ionic Compounds

Portions from the exercise are on the next two slides

Closure: Pass it on

Ionic bonds __________________

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