2.+Bonding

Key || * **Blue - HW **
 * Date || Content ||
 * New
 * ** Purple - attachments **
 * **Red - important dates/quizzes/tests/exams **
 * **Green - Text book reference **
 * **Pink - Objectives being covered from the syllabus **
 * **Turquoise - Labs ** ||
 * Feb 13/14 || Second half block: first half HL reinforcing transition metal work SL working on revision exercises - periodicity
 * 1) Introduction to bonding - ** covalent bonding and drawing Lewis Diagrams ** (structures or electron-dot diagrams)
 * 2) ** HW: Finish practice sheet for homework ** - includes structures that ** do not obey the octet rule **, and structures with ** multiple bonds. ** ||
 * Feb 15/16 || # ** Quiz - periodicity oxides(SL)/chlorides(HL both) **
 * 1) ** Cations and Anions **
 * 2) ** Part A: testing for common ions in solution; developing a knowledge of precipitation as a test for identifying ions **
 * 3) ** Part B: identifying cations and anions present in 4 solutions that are "unknown". **
 * 4) ** HW: preparation for PERIODICITY TEST next week. ** ||
 * Feb 19/20 || # Continuation of Lab: ** Part B: identifying cations and anions present in 4 solutions that are "unknown". **
 * 1) Tests for common gases - hydrogen, oxygen and carbon dioxide ||
 * Feb 21 || # Equations for the Cations & Anions Lab and going over the methodology. (Day 2) ||
 * Feb 22/23 || ** PERIODICITY TEST ** ||
 * Feb 26 || # Day off - thank you King Abdulla ||
 * Feb 27/28 || # ** Go over lab write up expectations. **
 * 1) ** VSEPR Theory - molecular shapes and bond angles. **
 * 2) ** Collect a handout ** from me and make notes during class.
 * 3) ** You must have completed all the practice Lewis Structures (HW earlier) **
 * 4) 12 minute quiz this week - Lewis Structures, Molecular Shapes and Bond Angles ** Group 4 Project!!! **
 * 5) **Lab write up** - collecting and processing for the **Cations/Anions Lab**; Concluding for the 4 unknowns; Evaluation of your procedure for the 4 unknowns; As a separate lab: write a brief summary for the Common Gases - simply, what are the tests and what does a positive test give? Due: (Monday 7 March - Day 2); (Tuesday 15 March - Day 1). ||
 * || ** REMINDER: Please make sure you complete your test corrections. Use your notes and text books to ensure they are correct. Discuss anything you like with me to make sure they are correct. Staple them to your test and put them in your class folder. ** ||
 * Mar 1/2 || **GROUP 4 PROJECT DAYS - WELL DONE EVERYONE ** ||
 * Mar 5/6 || **MOLECULAR SHAPES AND BOND ANGLES continued:**
 * 1) Blue book p74 (Questions on p76 to think about, you can probably do them in your head)
 * 2) Green book p101; shapes information p107-108 (SL) and p107-110 (HL)
 * 3) ** HW: Green book: SL = 4.2 p106; HL = 14.1 p111 **** Due: Mar 12/13 (see instructions below) **
 * 4) **Class work today**: go over shapes and look at bond angles (180, 120, 109.5, 107, 104.5) (HL - 90 & 120 equatorial/axial positions); SL - using key words and phrases correctly //EXPLAIN// the shapes for molecules with up to 4 e pairs around the central atom; HL - do the same for molecules up to 6 e pairs around the central atom.
 * 5) ** HW: priority over the other: SL explain all the shapes for the board; HL choose 2 for the SL set, 2 from the 5 e pair group and 1 from the 6 e pair group to explain the shapes for. Best examples will have both bonding pairs and non-bonding pairs in them **. ** Due: next class (just try it!) **


 * KEY WORDS/PHRASES **: central atom, bonding e pair, non-bonding e pair, repels, repulsion, (HL - minimizing repulsive forces, equatorial position, axial position)

9/12 || ** BOND POLARITY AND MOLECULAR POLARITY ** ** ONLY ** || * ** Serious HL students ** **: please see me about additional critical thinking questions for practice.** Day one group: **Go over the page in the Solid Summary sheet to prepare.** **You need to bring your dexterity - it's a speed test too.** || **as agreed on by YOU. ** ||
 * KEY IDEA TO APPLY HERE: non-bonding e pairs repel each other very strongly; non-bonding e pairs repel bonding e pairs strongly; bonding e pairs repel each other. ** ||
 * || **Instructions for this homework: **
 * 1) Answer the questions (even in pencil!) any way you like
 * 2) Take a red pen and check the answers (you have them) - circle the errors and write a correction next to the error
 * 3) Show me the completed work - I'm checking that you have done it and gone through these steps. ||
 * || ==DO YOU WANT TO GET WORK DONE FASTER & UNDERSTAND IT??? ==
 * 1) <span style="color: #000080; font-family: 'Trebuchet MS',Helvetica,sans-serif;">**YOU:** Take good notes on top of the notes I give you in class **WHILE IN CLASS** - ask questions as we work **WHILE IN CLASS**
 * 2) **<span style="color: #ff0000; font-family: 'Trebuchet MS',Helvetica,sans-serif;">YOU: When you go home **<span style="color: #000080; font-family: 'Trebuchet MS',Helvetica,sans-serif;">: just read the notes and have a wee think. If something doesn't make sense, use the text and just look for __just that part__ (not the whole chapter....boring!!!) read the text and add in some notes to **clarify the notes** you took in class OR **write your questions** if it makes no sense; do it now while you are confused...the question will make more sense when you come and ask me [don't just come and say "I don't get it" - what about "it" don't you get?
 * 3) <span style="color: #000080; font-family: 'Trebuchet MS',Helvetica,sans-serif;">**US**: Set aside **<span style="color: #ff00ff; font-family: 'Trebuchet MS',Helvetica,sans-serif;">one day a week **<span style="color: #000080; font-family: 'Trebuchet MS',Helvetica,sans-serif;"> when you bring some snacks and a drink - I'll put coffee on if it helps - **<span style="color: #008000; font-family: 'Trebuchet MS',Helvetica,sans-serif;">and park up in the chemistry lab *3:15 - 4:00pm **<span style="color: #000080; font-family: 'Trebuchet MS',Helvetica,sans-serif;"> (Sunday a good day, it's before my meeting days and before the end-of-week quiz) and either have a **<span style="color: #0000ff; font-family: 'Trebuchet MS',Helvetica,sans-serif;"> list of questions we can blitz through **<span style="color: #000080; font-family: 'Trebuchet MS',Helvetica,sans-serif;"> or **<span style="color: #0000ff; font-family: 'Trebuchet MS',Helvetica,sans-serif;">do your work and ask for questions as you need it. **<span style="color: #000080; font-family: 'Trebuchet MS',Helvetica,sans-serif;"> Use it as a day when you get the work done for chem and you can walk away with it done - no stress about taking 2 or 3 times longer at home alone trying to work it all out.
 * 4) <span style="color: #000080; font-family: 'Trebuchet MS',Helvetica,sans-serif;">**YOU:** This option is for you to work with you and with me as needed - working with your friends is on your time - this is about you getting more out of YOUR WORK & FASTER.
 * 5) **<span style="color: #ff0000; font-family: 'Trebuchet MS',Helvetica,sans-serif;">AFTER SCHOOL TIME IS YOURS **<span style="color: #008000; font-family: 'Trebuchet MS',Helvetica,sans-serif;"> - *you only need to stay as long as you want to/until your work is done/until you have no questions/whatever - I'm just suggesting you slot the time in and have it there when you need it. Stay up to date - stay on the knowing side - feel like you're on top for change. ||
 * Mar 7/8 || **MOLECULAR SHAPES AND BOND ANGLES continued:**
 * 1) Going over examples done in the last class and the explanation of the shapes. Phrases like "bonding e pairs" and "non-bonding e pairs" need to be used correctly. ** Clear understanding that non-bonding pairs repel each other very strongly, non-bonding e pairs repel bonding e pairs strongly and that bonding e pairs repel each other in that order is important ** . It is the combination of all of these forces acting together that result in the final shape of a molecule. ||
 * Mar
 * 1) You have a ** set of notes on polarity with very good images ** - keep those notes with your class notes.
 * 2) revisit ** electronegativity ** and practice ordering which elements are more electronegative - work done from the whiteboard
 * 3) notes from whiteboard on ** "pure covalent bonds", "polar covalent bonds" and "ionic bonds" ** - ** be very clear about ionic bonds being the result of oppositely charged ions NOT COVALENT BONDS!! Polarity is only a description of a type of COVALENT BOND. **
 * 4) Day two group: (Mar 9) we studied **the relationship between bond number, length and strength** - you have the paper.
 * 5) Day one group: (Mar 12) also completed determining X,Y & Z and identifying types of bond work from the whiteboard.
 * 6) ** HW ** : HL 14.1 green book p113 (there seems to be two exercise 14.1's??? but this one is on p 113 not p 111) ||
 * ** HL **
 * **Due dates are usually negotiated but once set the deadline is the deadline.** ||
 * Mar 13/14 || Day two group:
 * 1) Revisit the relationship between number of bonds, length and strength (briefly)
 * 2) Complete polarity work from the whiteboard - determine X, Y & Z and identify the type of bond
 * 3) Check 4.2 and 14.1 p111 completion - ** HW 14.1 p 113 **
 * 1) As above
 * 2) Overview all covalent work 4.2; metallic bonding 4.4; ionic bonding 4.1 ||
 * Mar 15/16 || # ** 8 - 12 minute quiz on Lewis structures, molecular shapes (bond angles) and polarity. You can expect 3 structures and some explaining to do. ** ||
 * || ** KEY IDEAS TO START APPLYING NOW: there is a big topic test looming in your future....... **
 * 1) What is structure? What is the bonding?
 * 2) What are the examples of properties we have been learning about?
 * 3) How does the structure and the bonding result in the properties?
 * 4) How do I explain these clearly?
 * 5) Am I a good student? ||
 * Mar 19/20 || # Let's take a look at the ** topic checklist ** (you have it - now look at it) - ** 4.5 is the aspect to keep your eyes on ** // - it's the really important part. //
 * 1) Whiteboard notes: ** COMPARE ** the **nature** of ionic, covalent and metallic bonding - they are all electrostatic but they are all different at the same time. ** DISCUSS ** the **properties** (different types of properties) using ** KNOWLEDGE ** about the **structure and bonding** . Eg Solid metal conducts electricity but solid diamond does not. //Solid metal has mobile "delocalised" electrons throughout the 3D network of cations. When a potential difference (electricity) is applied to the metal the delocalised electrons will carry the charge. Diamond is a 3D network of covalently bonded atoms. The electrons in the bonds are localised and not available to carry any charge when a potential difference is applied.// **Could you say that?**
 * 2) ** HW:Practice questions given out and to be completed. These are the sorts of questions you can expect so DO THEM. ** ||
 * || ** NO QUIZ THIS WEEK **** I will be away on Wednesday. Don't worry there's work for you......of course. **** If you have not done the self-checking practice work, shame on you and give it to me now - please :) ** ||
 * Mar 21/22 || # Intermolecular forces - van der Waals' forces, dipole-dipole and hydrogen bonding see page 78.
 * 1) The question sheet with 1-12 on it should be finished.
 * 2) The "Solid Summary" needs to almost be done. ||
 * Mar 28/29 || **QUIZ - competition on bonding will be MONDAY AND TUESDAY not WEDNESDAY due to Spring break etc.**
 * Mar 28/29 || **QUIZ - competition on bonding will be MONDAY AND TUESDAY not WEDNESDAY due to Spring break etc.**
 * Mar 30 - Apr 9 || # SL have finished. You have practice work to complete, check (using red pen and making corrections) then show me so I record your completion.
 * 1) HL - Hybridisation of orbitals, and bond overlap theory. You have powerpoint notes. Question sheet for practice. ||
 * || **<span style="color: #ff0000; font-family: 'Comic Sans MS',cursive; font-size: 120%;">SPRING BREAK ** ||
 * Apr 10/11 || # Recap hybridisation.
 * 1) Sigma and Pi bonds. Internuclear axis, shapes of orbitals (s and p), multiple bonds and resonance using nitrate and benzene examples. ||
 * || **<span style="color: #ff0000; font-family: 'Comic Sans MS',cursive; font-size: 120%;">APRIL 19/20 TEST **