Once youre in youre in When the bell

Once you’re in, you’re in. When the bell rings, voice at zero, working on the Do Now in Do Now Form. Pick up daily handouts. Pick up a Do Now Form. Pick up turned back docs. Pick up a white board, 1 sock, 1 dry erase marker. Keep your marker in the “parking spot” until further instructed. Do Now 10/8/2013 • Draw the Lewis dot structure for the following two IONIC bonds – Sodium and Oxygen – Magnesium and Iodine • Write the noble gas configuration for the following – Aluminum – Iron

Do Now 10/7/2013 • Draw the Lewis dot structure for the following two IONIC bonds – Sodium and Oxygen – Magnesium and Iodine • Write the noble gas configuration for the following – Aluminum – Iron

Tutoring and Makeup Work • Tuesday/Thursday this week; Wednesday at Lunch • THREE weeks left in the quarter – if your name is on the board , you owe me a quiz or a test!! • If you have a zero and you think you turned it in I have passed it back to you and you need to turn in again either graded or with proof it was turned in on time for full credit

Grade Example • Test 1 – 80 • Quiz 1 – 100 • Test 2 – 75 • Report 1 – 0 • Report 2 – 0 • Test 3 – 77 Average = 55% • Test 1 – 80 • Quiz – 100 • Test 2 – 75 • Report 1 – 50 • Report 2 – 50 • Test 3 – 77 Average = 72% Test 1 – 80 Quiz 1 – 100 Test 2 – 75 Report 1 – 80 Report 2 – 90 Test 3 – 77 Average = 84%

Homework • Naming Worksheet – From Thursday last week on the back of guided notes • Bohr Test Corrections (up to 4 points) Parent Signature, corrections on the back DUE TOMORROW** • VSPER Model worksheet (underline Lewis dot, shape, bond angles)** **Graded

Bohr Model Test - Hand back - Review common mistakes

Upcoming Dates • 10/9/2013 – Nomenclature and Formula Quiz • 10/10/2013 – Naming and Formula Test

Objectives SWBAT • Explain how covalent bonding in compounds determines its characteristics • Determine that a bond is predominately covalent by the location of the atoms on the Periodic Table • Apply the concept of electrons form covalent compound that is stable • Write names of ionic and covalent compounds • Based on Lewis Structure of a compound determine the geometry and bond angles Pop call

Bonding Review – Hands up, Pair up • Metallic • Ionic • Covalent

Covalent Bonding Practice • • • wb 2 oxygen 2 fluorine 2 Bromine HBr Si. F 4 N 2 S 3

Naming Review • Ionic – Rules? – Between what types of elements? – Compounds/molecules? • Covalent – Rules? – Between what types of elements? – Compounds/molecules? wb

Ionic Naming Practice • • • wb Na. Br Zn 3 P 2 NH 4 F Pb 3 N 2 Cd. SO 3 • • • Sodium bromide Zinc phosphide Ammonium flouride Lead (II) nitride Cadmium sulfite

Ionic Formula Practice • • Calcium Bromide Sodium Hydride Potassium hydroxide Platinum (II) sulfide wb Ca. Br 2 Na. H KOH Pt. S

Covalent Naming Practice • • • P 4 S 5 O 2 Se. F 6 CH 4 SCl 4 NF 3 wb Tetraphosphorus pentasulfide Oxygen Selenium hexaflouride Methane Sulfur tetrachloride Nitrogen trifluoride

VSEPR Model (Valence Shell Electron Pair Repulsion) The structure around a given atom is determined principally by minimizing electron pair repulsions. Electron pairs centered around a central atom tend to orient themselves as far apart as possible Used to predict geometry of a molecule or a polyatomic ion

Predicting a VSEPR Structure Ø Draw Lewis structure. Ø Put pairs as far apart as possible. Ø Determine positions of atoms from the way electron pairs are shared Ø Determine the name of molecular structure from positions of the atoms.

Steric Number 1 1 atom bonded to another atom (reference handout) Steric No. 1 Basic Geometry 0 lone pair linear 1 lone pair 2 lone pairs 3 lone pairs 4 lone pairs

Steric Number 2 2 atoms, or lone electron pairs, or a combination of the two, bonded to a central atom. Lone pair means a NOT bonded pair. Steric No. 2 Basic Geometry 0 lone pair linear 1 lone pair linear 2 lone pairs 3 lone pairs

Steric Number 3 3 atoms, or lone electron pairs, or a combination of the two, bonded to a central atom. Steric No. Basic Geometry 0 lone pair 1 lone pair 2 lone pairs 3 3 lone pairs trigonal planar bent / angular linear

Steric Number 4 4 atoms, or lone electron pairs, or a combination of the two, bonded to a central atom. Steric No. Basic Geometry 0 lone pair 4 tetrahedral 1 lone pair trigonal pyramid 2 lone pairs 3 lone pairs bent / angular linear

Steric Number 5 5 atoms, or lone electron pairs, or a combination of the two, bonded to a central atom. Steric No. Basic Geometry 0 lone pair 1 lone pair 2 lone pairs 3 lone pairs trigonal bipyramid sawhorse / seesaw t-shape linear 5

Steric Number 6 6 atoms, or lone electron pairs, or a combination of the two, bonded to a central atom. Steric No. Basic Geometry 0 lone pair 1 lone pair 2 lone pairs Octahedral square pyramid square planar 6 3 lone pairs

Steric Number 7 7 atoms, or lone electron pairs, or a combination of the two, bonded to a central atom. Steric No. Basic Geometry 0 lone pair 1 lone pair pentagonal bipyramidal pentagonal pyramidal 7 2 lone pairs 3 lone pairs

Lewis Structure and VSEPR practice • • • Carbon Tetraflouride BF 3 NF 3 H 2 CS Carbonate ion (CO 3) Finish this sheet for HW