Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

10/27 What happens during ionic bonding?

3,847 views

Published on

Published in: Technology, Business
  • Be the first to comment

  • Be the first to like this

10/27 What happens during ionic bonding?

  1. 1. Launch: 10/27   Grab your binder and immediately take a seat   Place homework (practice questions) on desk 1.  Label the following compounds as either ionic, covalent, or metallic i. LiF iii. Co v. CO vii. Cl2 ix.HI ii. NH3 iv. MgBr2 vi. LiOH viii. NaCO3 x.AgNO3
  2. 2. What happens during ionic bonding? Mr. Heffner 10/27/09
  3. 3. What is an ionic bond?   Ionic bonds are…   formed between a metal and a nonmetal when electrons are exchanged.
  4. 4. What happens during ionic bonding?   Video summary 1.  Valence electrons collide 2.  Electron is exchanged 3.  Two ions are formed 4.  Opposites attract!
  5. 5. What happens during ionic bonding? 1.  The valence electrons collide
  6. 6. What happens during ionic bonding? 1.  The valence electrons collide
  7. 7. What happens during ionic bonding? 2.  A valence electron is exchanged 1 valence e- 7 valence e- Octet Rule = everyone wants 8!
  8. 8. What happens during ionic bonding? 3.  Two ions are formed   Cation: positively (+) charged atom, lost an electron   Always the metal Positively charged Cats make me happy! 8 valence e-
  9. 9. What happens during ionic bonding? 3.  Two ions are formed   Anion: negatively (-) charged atom, gained an electron   Always the nonmetal Negatively charged anion = a negative ion 8 valence e-
  10. 10. What happens during ionic bonding? 4.  Opposites attract!   Electrostatic attraction holds the two atoms together
  11. 11. Summary 1.  Valence electrons collide 2.  Electron is exchanged 3.  Two ions are formed 4.  Opposites attract!
  12. 12. Practice Questions 1.  What is an ionic bond? 2.  What is a cation? 3.  List three ways anions are different from cations. 4.  In an ionic bond, what type of ion is the metal? 5.  In 1-2 sentences explain why atoms stick together in an ionic bond.
  13. 13. Ionic Bonds Storybook   Make the book   Make a title page – your name, block, and date   Fill in the pages with the 4 steps of ionic bonding   Write the step across the top   On the left page, draw a picture   On the right page, write the story   Be sure to include the following terms: •  ionic •  cation •  valence •  anion •  exchanged •  electrostatic
  14. 14. Exit Slip 1.  Unlike in covalent compounds, atoms in ionic compounds a.  share valence electrons to obtain a stable octet. b.  are always a nonmetal and a nonmetal. c.  exchange valence electrons and form ions. d.  are always two metals
  15. 15. Exit Slip 2.  What are anions? a.  positively charged atoms b.  negatively charged atoms c.  atoms with more protons than electrons d.  atoms that have gained a proton
  16. 16. Exit Slip 3.  The picture above is an example of a a.  cation b.  anion c.  isotope d.  nonmetal
  17. 17. Exit Slip 4.  Why are cations in an ionic bond positively charged? a.  because the metal loses an electron and becomes positively charged. b.  because the nonmetal gains an electron and becomes positively charged. c.  because metals have a higher electronegativity than nonmetals. d.  because the electrostatic repulsion between the two atoms pushes them apart.
  18. 18. Exit Slip 5.  What holds atoms together in an ionic bond? a.  shared pairs of electrons between the atoms b.  exchanged electrons result in two positively charged ions form a bond c.  the sea of electrons acts like a glue to keep the nuclei together d.  electrostatic attraction between anions and cations
  19. 19. Homework   Finish storybook   Study your flashcard!

×