Ms. S. Casey Notes

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Posted: March 15, 2011

    HOMEWORK Pg 195  Q 1, 3, 4, 5, 6,7,8, & 9    (P3 only up to question 5)   Crisscross Rule: Write the ionic charge above the symbol. Then crisscross the numbers using them as subscripts.     Metal Non-metal The formula is AlCl3 3+ 1-   Al  Cl      

Posted: March 14, 2011

       Ionic compounds are made up of positive (Metal) and negative (nonmetal) ions. *Positively charged ions are called cations *Negatively charged ions are called anions The ions are present because the metal gives its valence electrons to the nonmetal making both of them stable now.     They conduct electricity o   THEY TRANSFER ELECTRONS   o   Table salt is NaCl    Read pages 188-189 Complete questions 1- 4 p 189  

Posted: March 3, 2011

TEST Friday March 4th  & activity 4.3 due for marks   Review       2 table was organized by atomic mass b. same group have similiar properties c. noble gases are very unreactive gases d. alkali metals include sodium, potassium and lithium e. halogens include fluorine, chlorine and bromine f. metalloids are elements that have both metallic and non metallic properties g. the atomic number increases from left to right across a row of the periodic table 4. A period is a row and a group is a column in the periodic table 5. a) metals are found on the left and centre. b) non-metals are found on the right. 6. a. Alkali metals from 1+ ions           b. Halogens form 1- ions 9. A - 6 B - 4 C- 1 D - 3 E - 5 F - 2   10. A ) Elements in the third row have three orbits b) Elements in the fourth row have four orbits c) The period in the table also represents the number of orbits in the element`s electronic structure 11. a) 13 b)2,8,3 c) cloest noble gas neon d) must lose 3 to form a stable ion e ) the ion will have a charge of 3+ 15. Metals, polymers, composites and ceramics 16. a) composite - for its strength b) ceramic - for its heat insulation c) metal - for its strenth d) polymer - chosen for flexibility e) composite - for its breathability and wrinkle-resistance           1                

Posted: March 3, 2011

TEST Friday March 4th   Review     2 table was organized by atomic mass b. same group have similiar properties c. noble gases are very unreactive gases d. alkali metals include sodium, potassium and lithium e. halogens include fluorine, chlorine and bromine f. metalloids are elements that have both metallic and non metallic properties g. the atomic number increases from left to right across a row of the periodic table 4. A period is a row and a group is a column in the periodic table 5. a) metals are found on the left and centre. b) non-metals are found on the right. 6. a. Alkali metals from 1+ ions   b. Halogens form 1- ions 9. A - 6 B - 4 C- 1 D - 3 E - 5 F - 2   10. A ) Elements in the third row have three orbits b) Elements in the fourth row have four orbits c) The period in the table also represents the number of orbits in the element`s electronic structure 11. a) 13 b)2,8,3 c) cloest noble gas neon d) must lose 3 to form a stable ion e ) the ion will have a charge of 3+ 15. Metals, polymers, composites and ceramics 16. a) composite - for its strength b) ceramic - for its heat insulation c) metal - for its strenth d) polymer - chosen for flexibility e) composite - for its breathability and wrinkle-resistance 1      

Posted: March 2, 2011

Assigned Feb 8th 1.) What is environmental science? 2.) Why is Canada such a "resource-rich nation" ? 3.) Explain the expansionist and ecological approach on conservation? 4.) Outline the expansionist and ecological world views on conservation?   Assigned Feb 21   1.) List and briefly explain the main environmental problems listed below.   a) Overpopulation b) Depletion of resources (renewable and non-renewable) c) Pollution d) Extinction    2.) Define and explain the differences between developed countries and developing countries?    

Posted: March 2, 2011

Test Friday March 4th   Activity 4.3 to be handed in by Friday as well.

Posted: March 2, 2011

Test Thursday March3, 2011

Posted: February 24, 2011

Reviewed Bohr and Bohr-rutherford diagrams and corrected homework questions Learned about ions homework Complete assigned sheet and the question below. Pg 101 Q. 13 13 Draw and write the charge for the following ions: a) Beryllium, atomic number 4 b) nitrogen, atomic number 7 c) sulfur, atomic number 16

Posted: February 23, 2011

Ecologs will be checked this Friday, they should contain the following items: questions and answers assigned on Monday video worksheets completed and corrected

Posted: February 23, 2011

Advocacy letter is Due tomorrow - Feb 24th This is the first component of the eco-challenge portion of the course which makes up 35 % of the final mark.   Video worksheets are due tomorrow as well.

Posted: February 23, 2011

Notes and explanation on Bohr and Bohr-Rutherford Diagrams.   Homework P 93 Questions 2, 4, 5   http://www.zerobio.com/drag_gr9/bohr/bohr.htm   http://meadowvaless.peelschools.org/departments/science/bohrrutherford.gif

Posted: February 18, 2011

Corrected page 65 questions 1-5   Homework Complete both review sheets for Monday   Test Tuesday

Posted: February 17, 2011

Explained metal, nonmetals and metalloids on the periodic table.  Learned how chemical formulas are written and how to draw hook and ball diagrams   Homework Page 65 questions 1-5   Test Tuesday on all material covered up until this point.  A review was handed out today in case of storm.    

Posted: February 16, 2011

Reviewed notes and information from Monday, went over the answers to chart from Monday.  Added notes on isotopes and radioisotopes.   Homework Complete BLM 3.3 for homework

Posted: February 14, 2011

Corrected video worksheet, notes on atoms.   Homework Fill in the chart copied off the Smartboard

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