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Unit 2 Notes #2 Ionic Bonding

Unit 2 Notes #2 Ionic Bonding

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Unit 2 Notes #2 Ionic Bonding

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  1. Unit 2 Notes #2Ionic Bonding

  2. In your own words, what is a bond? Tell me…

  3. What do the elements Cl & Na do on their own? • Sodium • Chlorine Video & Demo:

  4. Why did the student not die?? Need a volunteer… A BRAVE one  Need a volunteer… A BRAVE one 

  5. Chemical Bond: theattractive forcethat holds two atomstogether (involves valence e-) • Compound: two or more elements chemicallybonded together CHEMICAL BOND

  6. 3 types: • IonicBond • CovalentBond • Metallic Types of Chemical Bonds

  7. Ionic bond: A bond formed between two (or more) ions by the transfer of electrons. • Formed between a metal & non-metal • When two or more ions are bonded together it’s called a COMPOUND. Bond Type #1:IONIC BOND

  8. Ion: a charged atom • Cation = positive (+) charge • Anion = negative(-) charge Ions

  9. All Compounds have an overall charge of zero. • Cations give their electrons to Anions in a ionic bond: CATIONS ARE ALWAYS LISTED FIRST! Ionic Compounds

  10. Remember:CATions are listed FIRST EX: Na ion + Cl ion  _____________ EX: Mg ion + O ion  _____________ EX: What about Mg & Cl? Practice:

  11. Simple Rule: Balance out the + and – ion charges so they equal zero (0). • ex: Na1+ + Cl 1- • ex: Mg2+ + O2- Writing Ionic Formulas

  12. Simple Rule: Balance out the + and – ion charges so they equal 0. • Ex: Mg & Cl • You need 2 Cl1- to balance out the Mg2+ Writing Compound Formula’s Mg2+ Cl1- Cl1-  MgCl2

  13. Wannaknow a Short Cut for Writing Ionic Formulas?

  14. Ca2+As3- Kris Kross Method! Ca3As2

  15. Just kriskross the + and the - charges, then reduce! Mg2+Cl1- MgCl2 Al3+O2- Al2O3

  16. An ionic bond is formed between a ____________ and _____________ element • A compound is two elements __________________ together • Why do elements form compounds? Review

  17. Write a TWEET/Facebook status about what you learned today – short, to the point • Adding a picture is optional  Tweet it!

  18. Work on Ionic Compounds on ws PRACTICE: 5MIN

  19. If the compound is ionic, there are two rules for naming it: Rule #1: Name the _______ first. Rule #2: Name the _______, and change the ending to –ide cation anion How do you name Simple Ionic Compounds?

  20. WORK ON QUESTIONS ON WORKSHEET. PRACTICE: 10 MIN

  21. Write the final formula for: • Na+1 + F-1 _______ • Ca+2 + N-3 ________ • Al+3 + O-2 ________ HW: Finish Ion Naming Wst (BACK) Due Thur Do Now: 9/20

  22. Fe (III) = Fe+3 Always a cation(positive) CLARIFICATION

  23. Bonding Notes #3:IONIC NOMENCLATURE (Naming) October 11-12, 2010

  24. If the compound is ionic, there are two rules for naming it: Rule #1: Name the _______ first. Rule #2: Name the _______, and change the ending to –ide cation anion How do you name Simple Ionic Compounds?

  25. EQUATION: Na+1 + Cl-1NaCl SodiumChlorine NAME: Sodium Chloride

  26. ELEMENT SYMBOL • CHARGES • COMPOUND (KRIS CROSS) • NAME IT COMPETITION:

  27. Name the following compounds: NaF BaCl2 Al2O3 BN Write the formula for the compound that forms when magnesium reacts with bromine. Agenda: • Notes • Group Competition • Independent Practice HW Write in Planner: Ionic Formula WS #4 AND Polyatomic Ions Catalyst October 11

  28. Naming Notes Part 2: Polyatomic Ions & Transition Metals

  29. Polyatomic Ionsare atoms that combine and react as a group. The Charge applies to the ENTIRE group. MEMORIZE THESE!!! Ammonium:NH4+ Hydroxide:OH- Nitrate: NO3- Sulfate: SO42- Carbonate:CO32- Phosphate: PO43- DON’T EVER CHANGE THE SUBSCRIPT!!!

  30. ( ) Sulfate: (SO4)2- Ohana means family. Family means no one gets left behind - Stitch

  31. 1. Balance the charges between ions (like before) 2. The entire group acts like one ion -Use parenthesis if you need more than 1 polyatomic ion (Don’t Change Subscript!): Ex: 2 NO3 = (NO3)2 Try: 3 CO3 = _____ 2 PO4 = _____ Bonding Rules for Polyatomics

  32. Na1+with CO32- Na2CO3

  33. Al3+ with SO42- Al2(SO4)3

  34. NH4+withCO32- (NH4)2CO3

  35. (Remember: The entire group acts like one ion) • Practice: • K+ + OH- • Na+ + SO4-2 • Ca+2 + OH- potassium hydroxide KOH sodium sulfate Na2SO4 Ca(OH)2 calcium hydroxide Polyatomic Ions Practice

  36. Write the 6 equation for these polyatomic ions: • Ammonium • Sulfate • Nitrate • Carbonate • Hydroxide • Phosphate HW: Write Name and Formula of polyatomic ions 5 x Each Do Now: 9/22

  37. Write the 6 equation for these polyatomic ions: • Ammonium • Sulfate • Nitrate • Carbonate • Hydroxide • Phosphate HW: Study for Quiz (Ions, Ionic Bonds, Polyatomic Ions) Do Now: 9/22

  38. Copper (II)* oxide • Ammonium iodide • Gold (III) Nitrate • Sodium Sulfate • Lead (II)* Hydroxide • Aluminum Carbonate • Iron (III)* Phosphate Write the equation for these compounds:

  39. AFTER YOU FINISH THE PUZZLE, You must also write a TIEAC paragraph answering the focus question. Keep in mind the following points: • Why atoms form ions • Why those ions bond together • What an Ionic Bond is Ionic Fit Bonding Puzzle

  40. You & your partners will receive an envelope with different elements and Polyatomic Ions manipulatives. • Put together 5 different compounds for naming/formula practice. For each compound you make, you must fill in the information in the chart in your notes: Polyatomic Compounds Puzzle

  41. When I tell you, pack up, pull notes/wst for homework, put binder on shelf • Sit down in your assigned seat. • When I tell you, stand up and slide your chairs in. I will dismiss you (not the bell). How To End Class

  42. 1. Transition Metals(are weird!) • Transition metals can take on different charges: Fe+2 Fe+3 Iron(II) Iron(III)

  43. Example: • FeCl2 • Separate the ions and figure out the anion Fe 2Cl- Name: iron (II) chloride Roman Numerals: I, II, III, IV, V, VI, VII Naming Transition Metals

  44. CuCl2 • FeCl3 • PbO Practice!

  45. Example: Copper (II) oxide Practice: • Iron (II) bromide • Mercury (I) chloride Writing Formulas from Names