Periodic Table Groups 1. Color-code the following groups on your periodic table: -alkali group...

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Periodic Table Groups1. Color-code the following groups on your periodic table:

-alkali group -alkaline group - transitional group -halogen group

-noble gases -inner transitional group

2.Add the staircase (separates metals/non-metals.)

3.Place an asterisk by each metalloid.

4.Non-metals groups: Which group is most reactive and which is most stable? Explain how you know this.

5.Metal groups: Which group is most reactive and which is most stable? Explain how you know this.

6.Give an example of two elements that will form an ionic bond to reach stability.

7.Give an example of two elements that will form a covalent bond to reach stability.

8.What does each period on the periodic table symbolize for an atom?

9.What period and group is Bromine in?

10.a. What is electronegativity?

b. What is the trend in electronegativity across a period and down a group on the periodic table.

Chem II-Period: 9.11.14Infinite Campus:•Scientific Skills and Matter Exam (48pts.)

Objectives:•Periodic Table Organization and Trends•Chemical classification and nomenclature

Homework:•Chemical Nomenclature Packet(ionic/covalent)

Periodic Table Groups1. Color-code the following groups on your periodic table:

Periodic Table: Organization and Bonding Periodic Table: Organization and Bonding

Bell Ringer: Periodic Table Check-up1. Give an example of an element from each group

below: alkali, halogen, transitional, noble gas, and alkaline-earth.

2. Which element from qts. 1 is a metal and is considered to be the most reactive. Explain your answer.

3. Which element from qts. one is a non-metal and considered the most reactive? Explain your answer.

4. Which element from qts. one is the most stable. Explain your answer.

5. Give an example of two elements that would form:

a. a covalent bond b. an ionic bond

6. What is electronegativity and how is it related to chemical bonding?

Bell Ringer: Periodic Table Check-up1. Give an example of an element from each group

below: alkali, halogen, transitional, noble gas, and alkaline-earth.

2. Which element from qts. 1 is a metal and is considered to be the most reactive. Explain your answer.

3. Which element from qts. one is a non-metal and considered the most reactive? Explain your answer.

4. Which element from qts. one is the most stable. Explain your answer.

5. Give an example of two elements that would form:

a. a covalent bond b. an ionic bond

6. What is electronegativity and how is it related to chemical bonding?

Periodic Table Groups-homework(9.2)1. Color-code the following groups on your periodic table:

Chemical Nomenclature

• Naming and deriving the formula of compounds .

Chem II-Period: 9.12.14Graded:•Periodic Table Bell Ringer

Objectives:•Chemical classification and nomenclature• Relationship between chemical bonding and organization of periodic table.

Homework:•Chemical Nomenclature Packet(ionic/covalent)•Chemical Bonding Study Guide

Chem II-Period: 9.16.14Due: •Chemical Nomenclature Packet (ionic/covalent)

Objectives:•Chemical classification and nomenclature(Acids/Bases)• Relationship between chemical bonding and organization of periodic table.

Chem II-Period: 9.17.14Due: •Chemical Nomenclature Packet (ionic/covalent)

Objectives:•Chemical classification and nomenclature(Acids/Bases)• Relationship between chemical bonding and organization of periodic table.

Homework:•Electronegativity Values and Chemical Bonding packet-Due Friday! (ppts. on my webpage)

Nomenclature Gallery Walk

Classify: Ionic or Covalent Chemical Formula Chemical Name

Chem II-Period: 9.19.14Infinite Campus: •Chemical Nomenclature Lab (10pts.)

Objectives:•Chemical classification and nomenclature. • Relationship between chemical bonding and electronegativity.

Homework:•Chemical Classification and Nomenclature-Quiz

Chem II-Period: 9.22.14

Objectives:•Chemical classification and nomenclature. • Relationship between chemical bonding and electronegativity. •Drawing Chemical Structures-Lewis Dot Structures

Homework:•Chemical Classification and Nomenclature-Quiz•Chemical Bonding/Structures Packet

Chemical Nomenclature Bell Ringer

Chemical Name Classification (ionic, covalent, acid, base)

Chemical Formula

manganese (II) sulfate

phosphorous trichloride

carbonic acid

Sr(OH)2

Complete the table below for each compound.

Chemical Nomenclature Quiz: A

Chemical Formula

Phosphoric acid

copper (I) sulfate

Phosphorous tetrachloride

Al(NO2)3

Chemical Nomenclature Quiz:B

Chemical Formula

dinitrogen pentasulfide

iron (III) acetate

hydrofluoric acid

H(NO3)

Ba(NO3)2

Chemical Bonding and Electronegativity

Electronegativity• Electronegativity: The degree of attraction

one atom has towards another atom’s valence electron in a compound.

• Determines the type of chemical bonds in a compound. (ionic, non-polar, and polar)

Electronegativity Values

webassign.net

Chemical Bonding : Electronegativity Difference

• The eletronegativity (EN) difference is calculated by subtracting the electronegativity values of each atom within a single bond.

webassign.net

• According to the eletronegativity table below, would metals or non-metals

have a greater electronegativity value? • Explain how electronegativity values determine the type of

ion (cation/anion) that a metal and non-metal would form in an ionic compound.

webassign.net

Covalent Compounds: Polar vs.Non-Polar Bonds

• The eletronegativity (EN) difference is calculated by subtracting the electronegativity values of each atom within a single bond.

Chem II-Period: 9.23.14Due: Chemical Bonding Table Worksheet

Objectives:•Chemical classification and nomenclature(quiz). • Relationship between chemical bonding and electronegativity. •Drawing Chemical Structures-Lewis Dot Structures

Homework:•Chemical Bonding/Structures Packet

Chemical Bonding and Electronegativity

Chemical Formula ClassifyCompound

Chemical Name Bonds:Ionic, Polar, Non-polar (EN difference)

CO2 C---O

CI4 C----I

MgF2 Mg---F

N2 N----N

FeO Fe---O

Chem II-Period: 9.24.14Infinite Campus:

Chemical Cmpds. Quiz (12pts.)

Electronegativity and Chemical Bonds

Objectives:•Relationship between chemical bonding and electronegativity. •Drawing Chemical Structures-Lewis Dot Structures

Chem II-Period: 9.25.14Infinite Campus:

Chemical Cmpds. Quiz (12pts.)

Electronegativity and Chemical Bonds

Objectives:•Relationship between chemical bonding and electronegativity. •Drawing Chemical Structures-Lewis Dot Structures

Chemical Compounds Quiz

Modifications to electronegativity difference table?

Covalent Compounds: Polar vs.Non-Polar Bonds

Ionic Bonding (Lewis Dot Transfer)

Metal (Lewis Dot)

Non-metal(Lewis Dot)

Ionic Bonding(Lewis Dot Transfer)

Molecular Structures: Lewis Dot Sharing

Molecules Lewis Dot Sharing Molecular Name

Polar or Non- Polar Bonds

Drawing Molecular Structures1.Draw Lewis Dot Structure for each element.

2.Calculate the total number of ve- for the molecule .

3.Share unpaired ve- with atoms. (covalent bonds)

4.Place lone pairs around appropriate atoms.

5.If an atom is not stable, then lone pairs can be used to reach maximum stability.

6.There are some exceptions to Octet Rule

• Elements with d-orbitals

• Molecules with an odd number of ve- (total)

VSEPR Theory(Valence Shell Electron Pair Repulsion)

liakatas.org

Molecular Geometry• Shape of the molecule in 3-D space.

• VSEPR Theory:

-(Valence Shell Electron Pair Repulsion)

-How bonds and lone pairs are arranged around atoms to minimize electron repulsion.

Chem II-Period: 9.29.14Objectives:•Chemical Compounds: classify/nomenclature-quiz •Predict chemical bonding using electronegativity. •Illustrate ionic and covalent bonding using Lewis Dot Structures. •Identify and model geometries of covalent compounds. (VSEPR theory)•Classify the type of bond between atoms in a molecule (sigma/pi). •Classify molecules as either polar or non-polar. •Predict the types of intermolecular forces that exist between molecules.

Homework: Chemical Bonding Study Guide-test Fri.

Molecular Structure Lab

Purpose:

•Model the geometrical shape of molecules using the VSEPR diagram.

•Additional Molecules:

•CH2Cl2•CO

•(NH4)+

•PCl5•BF3

Chem II-Period: 9.30.14Due: •Molecluar Structure Lab (pre-lab, L-D structures)

Objectives:•Identify and model geometries of covalent compounds. (VSEPR theory)•Classify the type of bond between atoms in a molecule (sigma/pi). •Classify molecules as either polar or non-polar. •Predict the types of intermolecular forces that exist between molecules.

Molecular Structure Lab

Purpose:

•Model the geometrical shape of molecules using the VSEPR diagram.

•Additional Molecules:

•CH2Cl2•CO

•(NH4)+

•PCl5•BF3

Molecular Structures

Chem II-Period: 10.01.14Due: •Molecluar Structure Lab (classify bonds and polarity of molecule).

Molecular Structures

Exceptions:

•Sometimes lone pairs are used in bonding

(coordinate bonds)

•There are exceptions to the octet rule:

(S, P, B, H, He)

Molecular Orbitals• When ve- are shared between two atoms in a

molecule, their atomic orbitals overlap.

• The overlap of atomic orbitals between two atoms create molecular orbitals.

• Each molecular orbital is also called a bonding orbital because it represents the sharing of two ve- between two atoms.

• Two types of bonding orbitals: Sigma and Pi

Bonding Orbitals

chemistryland.com

Molecular Orbitals

wikis.lawrence.edu

Polar Molecules

• What are polar molecules?

Polar Molecules

• Polar molecules: One end of the molecule is partially positive and the other end is partially negative.

• Also called dipole molecules.

• Which molecules did you predict from the lab were polar molecules?

Polar Molecules

Polar or Non-Polar Molecules?

ieshermanosbilingual.blogspot.com

en.wikipedia.org

3dchem.com

Chem II-Period: 10.02.14Due: •Molecular Structure Lab (classify bonds and polarity of molecule).

Molecular Structures Molecules Molecular

Structure Geometry/Bond Angle

Sigma/PiBonds

Polar/Non-Polar Bonds

Polar/Non-PolarMolecule

Molecular Structures Molecules Molecular

Structure Geometry/Bond Angle

Sigma/PiBonds

Polar/Non-Polar Bonds

Polar/Non-PolarMolecule

Intermolecular Forces: Classes

• Identify and define the types of intermolecular forces that can exist between molecules in the liquid and solid state.

• Give an example of a molecule that applies each type of intermolecular force when in the solid and liquid state.

Intermolecular Forces

itl.chem.ufl.edu

Forces between molecules in the solid, liquid, and gaseous state.

Types of Intermolecular Forces

1.Dipole Forces :

• Attraction b/w polar molecules

• Partial charges oppositely

attract

Prentice Hall: Chemistry

Types of Intermolecular ForcesHydrogen Bonds :

• Very strong dipole force.

Pre-resquiste for H bonding to occur:

• H must be covalently bonded to a very electronegative element (N, O, F).

Prentice Hall: Chemistry

Types of Intermolecular Forces

• 3. London Dispersion Forces:

• Caused by randomn motion of electrons

• Occur in non-polar and polar molecules.

• Temporary dipole forces.

elmhurst.edu

Intermolecular Forces

itl.chem.ufl.edu

Rank the intermolecular forces from weakest to strongest?

Intermolecular ForcesMolecular Formula Polar or Nonpolar Molecule Intermolecular Forces

Non-polar molecule because the bonds are non-polar; symmetrical.

Van der Waals or London Dispersion forces because the molecule is non-polar.

Polar molecule because bonds are polar, central atoms has lone pairs, and the geometry is asymetrical.

Hydrogen Bonding, strong dipole forces because hydrogen is bonded to a very electronegative element, N.

Polar molecule because bonds are polar and the central atom has to sets of lone pairs. Also the molecule is asymetrical.

Dipole Bonding, because the molecule is polar, meaning there is a partial charges that exist in the molecule.

Periodic Table Groups 1. Color-code the following groups on your periodic table: -alkali group...

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