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Entry Task: November 9 th Friday

Entry Task: November 9 th Friday. Provide the formula and name for the following: MgP and Lithium nitride TURN IN ENTRY TASK SHEET. Agenda:. Notes on Transitional elements In-class practice on part of homework Finish the rest of sheet for homework. Transitional Elements.

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Entry Task: November 9 th Friday

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  1. Entry Task: November 9thFriday Provide the formula and name for the following: MgP and Lithium nitride TURN IN ENTRY TASK SHEET

  2. Agenda: • Notes on Transitional elements • In-class practice on part of homework • Finish the rest of sheet for homework

  3. Transitional Elements USE THE BACKSIDE OF BINARY T-METAL SHEET

  4. H Li C Be Mg Na Si Fe Cu Zn K Mn Co Ge Ni Ca Sr Rb Ag Cd Ba Au Hg Pb Cs Cations When these atoms become ions they lose electrons thus becoming a positive charge. +1 +2 +3 +4 B Transitional Elements Al Sn Transitional elements can change charges. To know the charges we use Roman numerals. Iron (III) ion is Fe+3 Copper (I) ion is Cu+1 Lead (IV) ion is Pb+4

  5. Cations Transitional elements can change charges. How do you know the charges? We use Roman numeral to denote the charge. +1 charge is ( I ) +4 charge is ( IV ) +3 charge is ( III ) +2 charge is ( II ) +5 charge is ( V ) Iron (III) ion Fe+3 Copper (I) ion Cu+1 Lead (IV) ion Pb+4 Tin (IV) ion Sn+4

  6. Provide the symbol and charges for the following Calcium Ca +2 Potassium K +1 Iron II Fe +2 Gold II Au +2 Magnesium Mg +2 Aluminum Al +3 Pb+3 Tin IV Sn +4 Lead III

  7. Some exceptions There are three transition elements which do not require a Roman Numeral because they have single definite charges. These are Zinc – Zn+2 Cadmium – Cd+2 Silver – Ag+1 You need to remember the charges for these.

  8. Some exceptions Mercury’s has a twist Mercury I – Hg21+ Mercury II – Hg+2 You need to remember this as well 

  9. Let’s practice! 1. ZnCl2 31. Barium hydride 2. MgF2 32. Nickel (II) iodide 3. FeO 33. Iron (II) sulfide 4. CoCl2 34. Chromium (III) chloride 5. VCl5 Chlorine is -1 (2 ) = -2. Cation= +2Zinc chloride Ba = +2 H= -1 = BaH2 Fluorine is -1 (2 ) = -2. Cation= +2 Magnesium fluoride Ni = +2 I= -1 = NiI2 Oxygen is -2 (1 ) = -2. Cation= +2Iron II oxide Fe = +2 S= -2 = FeS Chlorine is -1 (2 ) = -2. Cation= +2Cobalt II chloride Cr = +3 Cl= -1= CrCl3 Chlorine is -1 (5 ) = -5. Cation= +5Vanadium V chloride

  10. HW: Finish the rest of Binary T-metal ws

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