DO NOW: Finish this table from yesterday FormulaChemical NameLewis Dot Picture NaBr Calcium Chloride Li 2 S Aluminum Bromide Sodium Bromide CaCl 2 AlBr 3 Lithium Sulfide Na + Br - + Ca 2+ Cl S Al 3+ Li + Br -

Polyatomic ions and Transition Metals in ionic bonds Unit 6: Chemical Bonding and Compounds

Transition Metal charges – work on Memorizing Some transition metals only have one charge: Ex: Ag +1 and Zn +2 Others have more than one charge: See handout CopperIron MercuryLead TinChromium Manganesecobalt

Naming transition metal compounds You must use the roman numeral in the name Ex Copper (I) chloride - CuCl Iron(III) Oxide - Fe 2 O 3

Polyatomic Ions Make flashcards and practice with them. Know the formulae, charges, names and Lewis Dot pics. NH 4 1+ ammonium OH 1- hydroxide NO 3 1- nitrate CO 3 2- carbonate SO 4 2- sulfate PO 4 3- phosphate C 2 H 3 O 2 1- Acetate CN 1- Cyanide Memorize these. Additional polyatomic ions can be found in table 7-2 on page 210 in text. Careful not to confuse the –ate ending with the –ite ending

Naming compounds with polyatomic ions The polyatomic ions keep their name: Potassium hydroxide – KOH Magnesium Sulfate – MgSO 4 Ammonium carbonate – (NH 4 ) 2 CO 2

How to Draw Polyatomic Ions-will cover more in covalent section Ammonium Nitrate Hydroxide etc…

Example Problems FormulaChemical NameLewis Dot Picture NaOH NH 4 I Iron (II) Nitrate Sodium Hydroxide Fe(NO 3 ) 2 Ammonium Iodide Na + + I Fe 2+

DO NOW 1/3: Provide the missing information Chemical FormulaChemical Name NH 4 I MgBr 2 CuCl 2 lithium oxide sodium hydroxide iron (III) oxide ammonium iodide magnesium bromide Copper (II) chloride Li 2 O NaOH Fe 2 O 3

DO NOW 1/4: Provide the missing information Name/FormulaLewis Dot Picture MgO Lithium chloride Copper (I) Bromide Iron (II) iodide Al 2 O 3 Mg +2 O -2 Li + Cl - Cu + Br - Fe +2 I - O -2 Al +3

FormulaChemical NameLewis Dot Picture FeBr 3 Aluminum sulfide K+K+ DO NOW 1/7: Provide the missing information