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(sorry, I should not have taken it down!) Lecture on Intramolecularforces with sound Sigma and Pi Bonds with hybridization and geometry animation
Amazing power point from class- abbreviated version Amazing animation Practice Questions with Answers! Good for review for |
Course Calendar
December 2008
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Unit II College Lecture on Ionization Energy & Electron Affinitya bit long- and a bit boring- but good. Some practice problems with answers to the atomic radius questions TOUGH practice problems- college level Covalent bonding bond angles animation using balloons teacher tutorial on Ionic bonding (basic) A tutorial on Lewis Structures More Lewis Dot Structure Practice Problems with Answers OChem- Click on the Lewis Structure under PreLectures (firefox recommended) Practice problems and tutorial- good one Vespr Animation-name of shapes |
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Monday Nov3 Finish Ionic Bonding for HW Read 9.1 and 9.2 |
4 tuesday ELECTION DAY! Covalent Bonds HW Practice with the following atoms: F+F Ca +O Sr+S Ga+I 1.Draw Lewis Dot Structure for each atom 2. Ionic or covalent 3. Molecular formula Read 9.4 |
5 Wednesday | 6 Thursday No classes Conference Day with Advisor |
7 Friday Lewis Structures Work through at least 10 examples on the Praticing Lewis Structure link above |
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10 Middle School Swimming Starts- FInd me on the pool deck during CP! Lewis Structure Practice Again! You should be very familiar with the sequence of how to solve the structure. 1. Skeleton 2. Valence contribution 3. minus bonding 4. assign electrons 5. octet complete? 6. Rearrange bonds? 7. check formal charge |
11 Make sure that you have reviewed ALL the links above...in the box...next to the comic....for those who have felt my instructions were unclear...ahem... Lewis Structure & Resonance Resonance means that there is more than one Lewis structure for a molecule Try CH3COO- an acetate anion- resonance is a blend of all the possible Lewis structures or an average. The "C-O" bond is stronger than a single bond and less than a double bond single bonds are known as sigma bonds
Octet Exceptions- for example- XeF4 and Boron triflouride -BF3, PCl5 Complete the Lewis structure and show which atom is an Octet exception. Periods 3 and above can expand their octet due to d orbitals Coordinate Covalent Bonds- Unbonded pairs can be transferred completely to another atom. The examples below are coordinate covalent bonds CO NH3 + (H+) --> NH3 + BF3 --> show the above above are examples that do not fit the rules we have learned.... Correctly write the structure for : Hydrogen cyanide- HCN Follow the rules!
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12 Bond Length- distance between nuclei- this may help determine what type of bond is present- covalent double bond or single bond. Bond Order- number of electrons in a bond, bond length is determined by bond order As bond order increases so does bond strength Bond Energies review table on page 277 Double bonds are stronger than single bonds
This is the end of Chapter 9 in your text- the next test will cover Periodic Law, Lewis Structures, and VSPER- date will be determined-looking like late next week orThanksgiving week. A good review suggestion to check your understanding- page 282- 283 practice problems.
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13 Remember- use your drops- I am on the pool deck for CP!
VSEPR & Molecular Geometry Read Chapter 10 All about shapes and what determines the shape of a molecule.
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14 Quiz on Lewis Structures! Lewis Structures only- use all the practice problems |
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17 Went over quiz! Please pick up from my desk if you do not have yours from being on Spanich trip |
18 Requiz on Lewis structures |
19 VSEPR Reminder of what determines three dimensional shape of a simple molecule Look at central atom What groups are attached - keeping both lone pairs and other atoms- count 'em and remember you need to place them in space with the least repulsion possible. Review the ppt- VSPER PPT REview the links above And attempt to do the geometry predictions within the ppt. Study for the test! See all the link above for more practice and help reviewing the material |
20 Vespr Shapes continued We did Candy version of molecular geometry. You should have turned the page with all the drawings of the structures. The angles should be labeled as well as the geometry of the molecule. I am not sure that I got all of section 1/2 papers so please turn them in to the sub. Section 5/6 will be There will not be a test for ANY classes tomorrow. I was discouraged from giving a test since I would not be here. Sorry. You may schedule the test for either day next week. Again apologies. Review the ppt's and links above for test review for Monday or Tuesday. Whenever you decide to take the test. |
21 ALL CLASSES TESTS ARE MOVED TO MONDAY. Please work on review sheet that was given out yest. The sub will have the answers to the multiple choice. You should work quietly in small groups.
O'Mara at Brain Conference at MIT |
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24 TEST- my class scheduled for Friday can choose what day and period they would like to take it...sorry for the stress! Tie Dye bring a t-shirt or socks. |
25 Tie Dye |
26 Thanksgiving Break | 27 Thankdgiving | 28 Thanksgiving Break | 29 | 30 | |||||||||||||||||||
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OCTOBER 2008 | 1 October Wed Beginning Quantum Physics Wave Properties Start Reviewing the links at the top of this page.
Test corrections- Click here for further instructions on how to do test corrections. |
2 Thursday Review test Wave properties Particle Wave Dualtiy |
3 Friday Beginning Electronic Configuration Complete questions 1-14 Reading in Text book-Section 7.3, 7.4, 7.5 |
4 Sat |
5 Sun |
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6 More electronic configuration Complete the handout from Friday- see link last week if you lost it Handout- Reading the Periodic Table Complete for hw In light of todays work...is the comic above starting to make sense?...we still have more to go. Test Corrections extended to Wed- please remember that extra credit deserves extra effort! Demonstrate that you have a knowledge of the answer and deserve credit. Each answer warrants several sentences...and follow format guidelines. |
7 HW due Electronic Configuration of Ions Hw- Review ppt of electronic conf of ions Isoelectric to Noble gases |
8 section 1/2 section 3/4 section 5/6 Orbital diagrams of electronic configuration, each class has different elements Section 1/2 Review and Practice Handout that you received in class can be saved till Friday. The other classes are not as far ahead as you! We will assign this sheet for HW over the weekend. Aufbau rule Hund's Rule Orbital diagram Isoelectric Test Corrections due |
9 No Classes- holiday observance of YK |
10 Nice job on Quantum Numbers today!!! Really great! Please review the ppt that I handed out. I cannot seem to link to the file so don't lose it!!!! HW for the weekend- complete the packet that I handed out in class. Please make a legitimate attempt for all answers. AND review the quantum numbers links above...they should make sense now! Hint- paramagnetic is unpaired See Wed for link on Review and practice handout for HW. Orbital Diagrams and quantum numbers
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13 Paramagnetic Diamagnetic Lewis Dot Structure Mrs. O'Mara's Birthday!!!! |
14 We reviewed the packet from last week and defined terms. Two more practice pages for HW. Review 8.5-8.7 9.3, 9.5 in your textbook |
15 Study for quest by reviewing all worksheets. Review the links above and the linked ppwerppts.
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16 Quest on electronic configuration and Quantum Mechanical Model of the atom (quantum numbers, elec config for atoms and ions, Aufbau, Hunds, Pauli exclusion principle wave vs. particle |
17 Scheduled O'Mara absence |
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20 NJAIS Conference School is closed |
21 Introduction to Periodic Law Reviewing the structure of the periodic table Read 8.5, 8.6, 8.7- due next Monday- reading a little bit everyday. Review your periodic table notes.
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22 Friday Schedule on a Wed. Periodic Table Periodic Trends -Atomic Radius Discussion Review links above HW- complete the atomic radius hw handout
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23 O'Mara Field trip to UMDNJ with SMART Team Sub will hand out ionization energy worksheet and graph of ionization energy. |
24 Wednesday Schedule on a Friday going to the pond! Dress appropriately for outside! Test Corrections due. HW- review the links & complete the take home quiz. This is an open notes quiz. You are allowed to use resources but not googling the question. NO discussion with other people! |
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27 Q- why is nitrogen's first ionization energy higher than oxygen? Electron Affinity discussion Make sure the reading is done that is listed on 10/21
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28 Q- Why does the atomic radius decrease as you move from left to right? Electron affinity quiz warm up Paper Lab on the Periodic Table |
29 paper Lab continues |
30 Grades close for the interim. Check with teacher about grades...your teachers should have grades calculated and available to you. finish lab- & questions Check point! Reactivity |
31 Rufus Gunther Day Community Service Projects FORM III AND IV are going to the FOOD BANK- Closed toed shoes, no tanks tops or bootie pants. Leave valuables at home. Dress warmly! Remember it's an open warehouse!!!! |
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