Launch: 11/6
  Grab your binder and immediately take a seat!
  Place homework (practice questions) on desk
1.  Draw the ...
Schedule
  We have an exam on Tuesday!
    Only today and Monday left for review.
  We don’t have time to waste!
     ...
Chemical Bonding Review
         Mr. Heffner
          11/6/09
What is the octet rule?
  The octet rule is…
    all atoms want to have 8 valence electrons
      except H and He
Why do atoms form
        chemical bonds?
  Atoms form chemical bonds…
    to get 8 valence electrons (like the noble ga...
What are the 3 types of bonds?
 1.  Ionic bonds
     formed between a metal and a nonmetal
     electrons are transferre...
Example #1
       In an ionic bond, what ion would O form?

  Step #1: metal or nonmetal?




            Metals
Example #1
   Example: In an ionic bond, what ion would O form?

  Step #1: metal or nonmetal?
    nonmetal = anion (–)
...
Example #1
       In an ionic bond, what ion would O form?

  Step 2: how far away from the noble gases?




            ...
Example #1
       In an ionic bond, what ion would O form?

  Step #3: write out the symbol and charge
    Step #1: anio...
What are the 3 types of bonds?
 2.  Covalent bonds
     formed between a nonmetal and a nonmetal
     electrons are shar...
What are the 3 types of bonds?
 3.  Metallic bonds
     formed between a metal and a metal
     electrons are shared
   ...
Example #2
Classify C2H4O2 as either an ionic, covalent, or metallic
                       compound.

  Step #1: identif...
Example #2
Classify C2H4O2 as either an ionic, covalent, or metallic
                       compound.

  Step #2: metal o...
Example #2
Classify C2H4O2 as either an ionic, covalent, or metallic
                       compound.

  Step #3: match t...
Homework
  Finish the review worksheet
  Study hard for Tuesday’s exam!
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11 6 Chemical Bonding Review

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11 6 Chemical Bonding Review

  1. 1. Launch: 11/6   Grab your binder and immediately take a seat!   Place homework (practice questions) on desk 1.  Draw the correct Lewis structures for the following atoms. Be sure to use the 3-steps! i.  HI ii.  PH3 iii.  O2
  2. 2. Schedule   We have an exam on Tuesday!   Only today and Monday left for review.   We don’t have time to waste!   Follow our 7 class rules   You may not use inappropriate language   If you have a question, ask!
  3. 3. Chemical Bonding Review Mr. Heffner 11/6/09
  4. 4. What is the octet rule?   The octet rule is…   all atoms want to have 8 valence electrons   except H and He
  5. 5. Why do atoms form chemical bonds?   Atoms form chemical bonds…   to get 8 valence electrons (like the noble gases) Chemical Bond O H H
  6. 6. What are the 3 types of bonds? 1.  Ionic bonds   formed between a metal and a nonmetal   electrons are transferred   metal loses electron  cation (+)   nonmetal gains electron  anion (–)   stick together because electrostatic attraction   called “salts” Cations attracted to neighboring anions
  7. 7. Example #1 In an ionic bond, what ion would O form?   Step #1: metal or nonmetal? Metals
  8. 8. Example #1 Example: In an ionic bond, what ion would O form?   Step #1: metal or nonmetal?   nonmetal = anion (–)   gain electron
  9. 9. Example #1 In an ionic bond, what ion would O form?   Step 2: how far away from the noble gases? 2 spaces away
  10. 10. Example #1 In an ionic bond, what ion would O form?   Step #3: write out the symbol and charge   Step #1: anion (–)   Step #2: 2 spaces away 2– O Is it a cation or an anion?
  11. 11. What are the 3 types of bonds? 2.  Covalent bonds   formed between a nonmetal and a nonmetal   electrons are shared   2 types of covalent bonds   non-polar: equally   polar: unequally
  12. 12. What are the 3 types of bonds? 3.  Metallic bonds   formed between a metal and a metal   electrons are shared   “free in the sea”
  13. 13. Example #2 Classify C2H4O2 as either an ionic, covalent, or metallic compound.   Step #1: identify the atoms   C = carbon (X2)   H = hydrogen (X4)   O = oxygen (X2)
  14. 14. Example #2 Classify C2H4O2 as either an ionic, covalent, or metallic compound.   Step #2: metal or nonmetal? Metals
  15. 15. Example #2 Classify C2H4O2 as either an ionic, covalent, or metallic compound.   Step #3: match the combination   a nonmetal, a nonmetal, and a nonmetal Covalent
  16. 16. Homework   Finish the review worksheet   Study hard for Tuesday’s exam!

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