12/19/12. Today we checked and reviewed HW, reviewed VSEPR strategies and patterns, and worked on review materials to prepare for Friday's test. Study for the test by completing : i) review p. 20-22 ; ii) review worksheet, and iii) last year's test. All answers are online.

 

12/18/12. Today we learned how to apply the Lewis structures we draw to elucidate the 3D structures of molecules and ions using VSEPR theory (p. 9-12). We learned the effects of repulsion between bonded and nonbonded pairs of electrons on molecular and ionic shapes. We related shapes to internal bond angles, and the polarity, melting-points and solubilities of compounds. Use the summary on p. 13 to help. HW: p. 18 & 19, due tomorrow. SCHEDULE: tomorrow review, Friday TEST.

 

12/17/12. Today we completed learning how to draw dot diagrams for covalent compounds by completing p. 8, which included "Special Examples" of resonance structures. HW: p. 18, due Wednesday.

 

12/13/12. Today we learned how to describe covalent polar and nonpolar compounds, and to state the properties and describe the intermolecular forces that exist for each. We then introduced rules for drawing dot diagrams for covalent compounds. HW: p. 16 and 17, due Monday.

 

12/12/12. Today we began our new unit on Bonding. We explored the bonding and properties of the following types of compounds: ionic, metallic, and network covalent. We saw a demo to illustrate some properties of solubility and conductivity. HW: p. 16 top three rows (will grade when complete).

 

12/11/12. Today we had a quick review of HW before sitting the test. HW: complete Review #1 on p. 14 and 15 of your new notes packet by using past notes and chapter 7 and 8 of the textbook (due tomorrow).

 

12/7/12. Today we practiced writing names and formulas for covalent compounds, p. 9 and 10, and then practiced differentiating between ionic and covalent compounds, p. 11 and 12. Then we learnt the rules for naming and writing formulas for acids, p. 13, and practiced by working on p. 14. HW: p. 20 and 21, due Tuesday for a grade (10 points), plus complete the review worksheet for practice (0 points). We will review HW before Tuesday's test (review topics are i) an element's group, block, # valence electrons, ion it forms, compare atomic and ionic radius; ii) mass-mole-# molecules conversions). Also, yesterday's worksheet with answers is uploaded on the Nomenclature webpage. Have a great weekend!

 

OOPS! FORGOT TO HAND OUT THE REVIEW WORKSHEET FOR PRACTICE THIS WEEKEND. Click here to get it: Review

 

12/5/12. Today in our Colorful Precipitates lab we saw transition metals demonstrate their characteristic formation of colored compounds. We had practice writing formulas using the criss cross method. Write up due Friday. Schedule: tomorrow worksheet with sub; Friday complete covalent compounds and acids; Tuesday review and TEST.

 

12/3/12. Today we completed learning all we need to know about writing names and formulas for ionic compounds by completing p. 7 and 8. Then we learnt the rules for writing names and formulas for covalent (molecular) compounds. No HW today. Schedule: lab Wednesday, sub with worksheet Thursday, covalent compounds Friday.

 

11/30/12. I hope today's lesson with the sub went well and you feel you are able to write and name formulas for ionic compounds. Remember HW: p. 15, 16, 18 and 19 due Monday. Have a good weekend!

 

11/29/12. Today we reviewed how to write the names and formulas for ternary compounds (contain polyatomics), p. 5 and 6. Then we learned how to write formulas for compounds containing transition and post-transition metals by calculating the charge (oxidation state, hence Roman numeral) from the anion, p. 6. Then we practiced writing names and formulas, p. 7  and 8. HW: p. 15, 16, 18 and 19 due Monday.

*** TOMORROW YOU WILL HAVE A SUB FOR GROUP WORK THAT WILL BE COLLECTED AND GRADED ***

 

11/27/12. Today we began our new unit, Nomenclature. We previewed the unit by looking at ions and reminding ourselves that metals form cations and nonmetals for anions. Then we practiced writing formulas for cations and anions (including using Roman numerals for transition and post-transition metals), and putting them together to make binary ionic compounds, p. 4 and top of p. 5. HW: p. 17 (due Thursday).

 

11/26/12. Today we reviewed HW and answered a few questions before taking the very short end of unit test. We started the new unit on Nomenclature. Remember the colored PT activity is due tomorrow.

 

11/21/12. Today we continued how to calculate molecular mass (REMEMBER TO USE 1 dp FOR ATOMIC MASSES) and to convert metween mass, moles and number of molecules. Then we worked on the Colored Periodic Table Activity - detach p. 13 & 14, complete, and attach a rubric (due Tuesday). I have uploaded the key for all of the notes and p. 9 and 10 HW answers. HW: do p. 11 and 12 (due Monday) and study for Monday's test. Happy Thanksgiving!

 

11/19/12. Today we completed presenting the properties of groups/regions of elements. A good job by all - these are your notes to study from. Then we learned about forming ions and the octet rule, and discovered that ionic size differs from the size of a parent atom. Then we learned the difference between an atom and a molecule and learned the seven diatomic elements. No HW, but study what you have learned so far ready for next week's test. Also, work on your project - there is a sample advert project uploaded on this unit's webpage.

 

11/16/12. Today we we researched in groups the properties of six regions/groups of the PT in a jigsaw activity so as to present and teach our findings to the rest of the class. A good job by all - these are your notes to study from. We will complete the presentations from group 3 onwards on Monday. HW: do HW #2 (p.10) - due on Monday with HW #1.

 

11/15/12. Today we completed discussing trends across a period and down a group. Then we received our project assignments (due 11/26). Then we researched in groups 6 regions/groups of the PT in a jigsaw activity so that we can present and teach our findings to the rest of the class.

 

11/15/12. Today we began our new unit, The Periodic Table. Our Do Now reviewed reading electron configurations directly from the PT, and reinforced  identifying the s, p, d and f blocks; counting valence electrons; and identifying metals, nonmetals and metalloids. We then took notes on the historical development of the PT (Mendeleev and Moseley), parts of the PT, and examined the effects of the nuclear pull experienced by valence electrons. This leads to trends across a period and down a group (p. 4). HW: do HW #1 (p. 9), due Monday.

 

11/13/12. Today we completed the end of unit test. HW: complete the periodic table electron configuration activity.

 

11/12/12. Today we worked on this unit's review worksheet and last year's test. HW: study for tomorrow's test.

 

11/9/12. Today we performed the famous "Flame Test Lab" where we heated solutions of various cations and observed their colorful flames (aka "emission spectra") and used these to identify unknown cations afterwards. Then we observed with rainbow glasses the emission spectra of three pure elements by using a spectrometer, and related this to the energies and wavelengths of the photons emitted. HW: complete lab write-up (due Monday).

 

11/7/12. Today we completed the academic work in this unit by reviewing the noble gas abbreviation for writing electron configurations (p. 11). We also saw four exceptions to the Aufbau principle, based upon the changes to the relative energies of the s and d sublevels. We then worked in pairs on a review worksheet. HW: continue with the review worksheet and study for Tuesday's test.

 

11/6/12. Today we continued using the Aufbau principle, Hund's Rule, and the Pauli exclusion principle to represent the arrangement of electrons in atoms in different ways, and saw the correct and incorrect ways to use Hund's Rule and the Pauli exclusion principle. We learned how to abbreviate the electron configuration and orbital notation by using a noble gas shorthand notation. HW: p. 16 (due Friday).

 

11/5/12. Today we had a quick recap of the important points in this unit so far: the relationships between energy, frequency and wavelength in waves, and the meaning of energy levels, sublevels, orbitals and spin when discussing the arrnagment of electrons. We learned the three rules that govern describing the arrangement of electrons (the Aufbau principle, Hund's Rule, and the Pauli exclusion principle), and represented electron configurations for simple atoms in three different ways (Bohr diagram, oribital filling diagram and electron configuration), as well as learning how to determine the number of valence electrons in an atom. HW p. 15 (due Wednesday), and a reminder that the reading activity p. 12-13 and the optional HW p. 18 is also due Wednesday.

 

SCHEDULE: Tues 11/6 - continue with electron configurations p. 8-11; Weds 11/7 - review; Fri 11/9 - lab; Mon 11/12 - graded lab practical; Tues 11/13 - TEST. 

 

10/26/12. Today we learned how atoms absorb and emit energy (p. 5) and how this produces an atomic emission spectrum, and began learning about the quantum numbers that describe the arrangement of electrons in an atom (p. 6). HW: do the reading activity p. 12-13 (due Monday).

 

10/25/12. Today we started our new unit, Electrons in an Atom. We studied the wave properties of light and learned the direct and inverse relationships that exist between energy, frequency, wavelength and speed. Then we learned the features of and how to use a Bunsen burner by performing an activity in pairs involving heating and bending glass tubes. HW: do p. 14 (due Friday). OPTIONAL HW: p. 18 (due Friday).

 

10/23/12. Today we took the Atomic Structure test. HW: complete the vocabulary word bank for the next unit, which we start Thursday.

 

10/22/12. Today we worked in pairs and rotated through stations to review for tomorrow's test which will include the following topics: 1) counting p, n and e for elements, isotopes and ions; 2) calculating average atomic mass; 3) mass/mole/# atoms conversions; 4) balancing nuclear reactions; 5) half-life; and 6) calculating percent abundance (optional).

Note that past topics to be reviewed and tested are metric conversions (milli, centi, deci and kilo) and accurate reading of lab equipment (if apparatus reads units then you report tenths; if it reads hundreds then you report tens, etc.). All of today's review questions and answers are uploaded, as well as the complete notes packet key. Pay special attention to knowing all of the scientists' information, including Democritus.