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Understanding Ionic Bonding Through Compounds and Polyatomic Ions

Explore the concept of ionic bonding between elements like Cl and Na, forming compounds with unique properties. Learn how to name and write formulas for ionic compounds and polyatomic ions. Practice equations and compete in a bonding puzzle!

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Understanding Ionic Bonding Through Compounds and Polyatomic Ions

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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

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