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Ionic Bonding Review

Ionic Bonding Review. Write the formula for Magnesium Chloride. What’s the charge of Phosphorus? Name this compound: Na 3 N Trick: Criss-cross method for ionic bonding. Ionic Compounds Involving Transition Metals. Formulas & Nomenclature. Objectives Covered Today.

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Ionic Bonding Review

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  1. Ionic Bonding Review • Write the formula for Magnesium Chloride. • What’s the charge of Phosphorus? • Name this compound: Na3N • Trick: Criss-cross method for ionic bonding

  2. Ionic Compounds Involving Transition Metals Formulas & Nomenclature

  3. Objectives Covered Today • Name compounds containing transition metals (d-block elements). • Given the name of a compound containing a transition metal, write its formula.

  4. Name compounds containing transition metals (d-block elements). • Transition metals are those metals whose valence electrons exist in the d-block of the periodic table. • This allows them to have multiple positive charges • THE POSITIVE CHARGES ON TRANSITION METALS CAN CHANGE!!!

  5. 1. Identify transition metal cation, and anion from formula FeCl2 ? ?

  6. 2. Identify the charge of anion first Example Compound FeCl2 • Which element is the anion? What’s the charge? • What’s the overall charge of the anions? • What does the charge of Fe have to be? • Remember, has to make it a neutral compound

  7. 3. Write charge of transition metal cation after the name of the metal as a roman numeral in parentheses Example Compound FeCl2 Iron ( ) Chloride

  8. Practice Name the following transition metal ionic compounds • NiCl2 • Cu2O  • SnBr4 

  9. Given the name of a compound containing a transition metal, write its formula. Example Name: Cobalt (III) Chloride

  10. 1. Determine symbol and charge of transition metal cation Example Name: Cobalt (III) Chloride • What’s the symbol and charge of Cobalt?

  11. 2. Determine charge of individual anion Example Name: Cobalt (III) Chloride What’s the symbol and charge of chloride?

  12. 3. Determine how many of each atom is needed to make a neutral compound Example Name: Cobalt (III) Chloride • How many Co3+ atoms for every Cl- atom?

  13. Example Name Cobalt (III) Chloride CoCl3

  14. Practice What are the formulas for these compounds? 1. Chromium (III) Sulfide  2. Mercury (I) Chloride  3. Zinc (II) Nitride 

  15. Exceptions on Charges Transition metals that have ONLY ONE CHARGE • Silver (Ag) is ALWAYS +1 • Zinc (Zn) is ALWAYS +2 • They do not need roman numerals. Metals that need roman numerals • Tin (Sn) can have +2 or +4 • Lead (Pb) can have +2 or +4

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