Week # 3 Quarter 2 (10/28)

To Do Today:*Organize notebooks*Bohr Model building practice

Fact of the DayThe first Jack O’Lanterns were actually made from turnips.

Halloween is the second highest grossing commercial holiday after Christmas.

Today in I.S.…I.S. Learning Goal:•I can describe the features and components of the atom. •I can apply models to features of an atom

Bohr models: http://www.bing.com/images/search?q=periodic+table+with+bohr+model&qs=n&form=QBIR&pq=periodic+table+with+bohr+model&sc=2-28&sp=-1&sk=#view=detail&id=84E87C34FE80C1EB7CFAD0A3811B29AFD10F3DF4&selectedIndex=7

Warm Up: new handoutFor element Al what is Lewis Dot and Bohr Model?

Homework: None

Quiz Wednesday

Week # 3 Quarter 2 (10/29)

To Do Today:1. Warm Up2. Pick up Periodic Table Basics -Begin

Fact of the DaySamhainophobia is the fear of Halloween

Today in I.S.…I.S. Learning Goal:•I can describe the features and components of the atom. •I can apply models to features of an atom

Warm Up: Find the element SiliconDraw Lewis Dot and Bohr model.

Homework: None

Boston, Massachusetts, holds the record for the most Jack O’Lanterns lit at once

Begin work on periodic table basics.

You may work with one partner

Week # 3 Quarter 2 (10/30 & 31)

To Do Today:*review handout*video on Periodic Table*Quiz*puzzle

Fact of the Day

Today in I.S.…I.S. Learning Goal:•I can describe the features and components of the atom. •I can apply models to features of an atom

Bohr models: http://www.bing.com/images/search?q=periodic+table+with+bohr+model&qs=n&form=QBIR&pq=periodic+table+with+bohr+model&sc=2-28&sp=-1&sk=#view=detail&id=84E87C34FE80C1EB7CFAD0A3811B29AFD10F3DF4&selectedIndex=7

Warm Up:Find the element phosphorusWhat is Lewis Dot structure and Bohr model

Homework: None

If you stare into the mirror at midnight on Halloween, what does superstition say you going to see?

Your Future Spouse

Which Halloween creature has a long middle finger, an unibrow and tattoos?

A Werewolf

Elemental Review pg. 13

(notebook paper)1. Fold paper in 1/32. Glue (little bit…) onto notebook paper pg 13

1. Front Element Name and symbol2. Inside left – Atomic Mass and Atomic Number3. Right – Protons, Neutrons and Electrons4. Open right flap (center) Lewis Dot5. Right flap Bohr Model

3. On bottom of page write a paragraph describing vocab terms – highlight terms!Periodic table, charge and location of protons, electrons and neutrons, groups, periods, valence electrons

4. Turn into box

Week # 3 Quarter 2 (11/1)

To Do Today:*Periodic Table Basics *Quiz*puzzle

Fact of the Day

Today in I.S.…I.S. Learning Goal:•I can describe the features and components of the atom. •I can apply models to features of an atom

Warm Up:Find the element Carbon What is Lewis Dot structure and Bohr model

Homework: None

Just one atomic layer thick, the 'miracle material' Graphene is a better conductor of electricity and heat than any material.

Elemental Quiz

Complete the Periodic Table Basis Worksheet

Review puzzle

You should know how to draw Lewis Structures and Bohr Models for the

first 20 elements.

Week # 3 Quarter 2 (11/4)

To Do Today:

Fact of the Day

Today in I.S.…I.S. Learning Goal:

Warm Up:

Homework: None

I can describe predict properties of elements and compounds using trends of the periodic table (e.g., metals, non-metals, bonding – ionic/covalent).

Chemical BondingIS

Objectives

0Explain why atoms form bonds0Define chemical bond & name

three types of chemical bonds0Determine the chemical formulas

for covalent and ionic compounds

Bonding Atoms0Why do atoms bond?

- each atom wants a full outermost energy level - gain, lose, and share valence electrons to achieve the duet or octet rule aka: “being happy”- gives each atom an electron configuration similar to that of a noble gas

ex. GROUP VII: He, Ne, Ar

Rhyme1 Bond2 bond3 bond 43 bond 2 bond 1No more

Chemical Bonds

0Chemical Bonds- attractive force that holds atoms or ions together- 3 types

ionic, covalent, metallic- determines the structure of compound- structure affects properties

- melting/boiling pts, conductivity etc.

Types of

bonds

1. Ionic Bond0Between atoms of metals and nonmetals with

very different electronegativity0Electronegativity, symbol , is a chemical property that χ

describes the tendency of an atom or a functional group to attract electrons

0Bond formed by transfer of electrons

0Produce charged ions all states. Conductors and have high melting point.

0Examples; NaCl, CaCl2, K2O

Ionic Bonds: One Big Greedy Thief Dog!

2. Covalent Bond0Between nonmetallic elements of similar

electronegativity.0 Electronegativity, symbol , is a chemical property that describes the tendency of χ

an atom or a functional group to attract electrons

0Formed by sharing electron pairs

0Stable non-ionizing particles, they are not conductors at any state

0Examples; O2, CO2, C2H6, H2O, SiC

Bonds in all the polyatomic ions

and diatomics are all covalent bonds

when electrons are shared equally

3. NONPOLAR COVALENT BONDS

H2 or Cl2

2. Covalent bonds- Two atoms share one or more pairs of outer-shell electrons.

Oxygen Atom Oxygen Atom

Oxygen Molecule (O2)

when electrons are shared but

shared unequally

POLAR COVALENT BONDS

H2O

Polar Covalent Bonds: Unevenly matched, but willing to share.

- water is a polar molecule because oxygen is more electronegative than hydrogen, and therefore electrons are pulled closer to oxygen.

METALLIC BONDbond found in

metals; holds metal atoms together

very strongly

Metallic Bond0Formed between atoms of metallic

elements

0Electron cloud around atoms

0Good conductors at all states, lustrous, very high melting points

0Examples; Na, Fe, Al, Au, Co

Metallic Bonds: Mellow dogs with plenty of bones to go around.

Predicting Bond Type

Naming Ionic Compounds

0Naming ionic compounds (binary)Formula to Name- name of cation followed by the name of the anion

ex. NaCl: Sodium Chloride ZnO: Zinc Oxide CuCl2: Copper Chloride

Naming Ionic Compounds

0 Practice ProblemsMgBr2

Magnesium BromideKIPotassium IodideCuCl2

Copper (II) ChlorideFe2S3

Iron (III) Sulfide

Formulas of Ionic Compounds 0 Writing formulas for ionic compounds

Name to Formula- balance the cation charge and anion charge, leaving NO net charge- use subscripts to denote the number of atoms in the formula

ex. NaCl: Na+ Cl- : NaCl CaCl: Ca2+ Cl- : CaCl2

**1 to 1 ratios do not designate charge****Criss-Cross charges into subscripts**

Practice Problems

0 Write the formula for the following atomsa. lithium oxide

Li2O

b. beryllium chloride BeCl2

c. titanium (III) nitrideTiN

d. cobalt (III) hydroxideCo(OH)3

Naming Covalent Compounds0 Prefix System# of atoms prefix

1 mono2 di3 tri4 tetra5 penta6 hexa7 hepta8 octa9 nona10 deca

Naming Covalent Compounds Cont.0 Rules for the prefix system

1. less electronegative element is given first. It is given a prefix only if it contributes more than one atom to a molecule of the compound2. The second element is named by combining (a) a prefix indicating the number of atoms contributed by the atom (b) the root of the name of the second element, and (c) the ending –ide3. The o or a at the end of a prefix is usually dropped when the word following the prefix begins with another vowel

ex. Monoxide or pentoxide

Naming Covalent Compounds Cont.

Naming covalent compounds from formula1. SiO2

Silicon dioxide2. PBr3

Phosphorus tribromide3. CI4

Carbon tetraiodide4. N2O3

Dinitrogen trioxide

Writing Formulas for Covalent Compunds

0 Writing formulas from names1. Carbon Dioxide

CO2

2. Dinitrogen PentoxideN2O5

3. Triphosphorus monosulfideP3S

4. Sulfur MonobromideSBr

Polyatomic Ions(pass out polyatomic sheet to

be used on assessments)0Common Polyatomic Ions