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Entry Task- Block #2 Nov. 7 th -8 th

Entry Task- Block #2 Nov. 7 th -8 th. OUESTIONS: Name 3 properties of ionic compounds. YOU have 5 minutes!. Agenda: . Go over Ch. 8 section 1-2 ws HW : Ionic Battleship I w.s. Ch. 8 section 1-2 ws. Notes on Ionic Compounds. Rules for WRITING a compound formula.

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Entry Task- Block #2 Nov. 7 th -8 th

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  1. Entry Task- Block #2 Nov. 7th-8th OUESTIONS: Name 3 properties of ionic compounds. YOU have 5 minutes!

  2. Agenda: • Go over Ch. 8 section 1-2 ws • HW: Ionic Battleship I w.s

  3. Ch. 8 section 1-2 ws

  4. Notes on Ionic Compounds

  5. Rules for WRITING a compound formula 1. Locate on periodic table Ex: Sodium and fluorine 2. Symbol and charge. Ex: Na +1 and F-1 3. Metal in front. Balance out charges to be zero. Na +1 Cancels out F-1 NaF

  6. Lets practice With the following elements, provide their formulas Chlorine and Lithium LiCl NaBr Notice that the ratio is 1:1 and they cancel out easily. Sodium and Bromine BeO Oxygen and Beryllium AlN Nitrogen and Aluminum GaP Gallium and Phosphorus

  7. Lets practice some more… With the following elements, provide their formulas Oxygen and Lithium Lithium = Li+1 Oxygen = O-2 +1 Li + 2 -2 O Li +1 Li2 O

  8. Sodium and Nitrogen Sodium= Na+1 Nitrogen= N-3 Na + 3 +1 -3 N Na +1 Na +1 Na3 N

  9. Bromine and Beryllium Beryllium= Be+2 Bromine= Br-1 -1 Br Be +2 - 2 Br -1 Be Br2

  10. Aluminum and Sulfur Aluminum= Al+3 Sulfur= S-2 Al S + 6 +3 -2 - 6 S -2 Al +3 S -2 S3 Al2

  11. Strontium and Phosphorous Strontium= Sr+2 Phosphorous= P-3 Sr + 6 +2 P -3 - 6 Sr +2 P -3 Sr +2 Sr3 P2

  12. Rules for NAMING compounds Example NaCl Metal in front Nonmetal – change the back to –ide CUT OFF NAME AT THE SECOND VOWEL then add -IDE Answer Sodium Chloride

  13. Example of Naming Li2O Lithium oxide Na3N Sodium nitride BeBr2 Beryllium bromide Al2O3 Aluminum oxide Sr3P2 Strontium phosphide

  14. In-Class Practice- • Provide the name or formula for the following compounds. BaO Magnesium oxide a. Barium oxide e. MgO b. Calcium chloride f. Na2S c. Aluminum oxide g. LiI d. Cesium nitride h. SrF2 CaCl2 Sodium sulfide Al2O3 Lithium iodide Strontium fluoride Ce3N

  15. In-Class- Ionic Battleship I sheet

  16. Homework: Finish up –Ionic Battleship practice I

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