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

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

C H. 8 SECTION 1-2 WS

N OTES ON I ONIC C OMPOUNDS

1. Locate on periodic table Ex: Sodium and fluorine 2. Symbol and charge. Ex: Na +1 and F Metal in front. Balance out charges to be zero. Na +1 Cancels out F -1 NaF R ULES FOR WRITING A COMPOUND FORMULA

L ETS PRACTICE With the following elements, provide their formulas Chlorine and LithiumLiCl Sodium and Bromine NaBr Oxygen and Beryllium BeO Nitrogen and Aluminum AlN Gallium and Phosphorus GaP Notice that the ratio is 1:1 and they cancel out easily.

L ETS PRACTICE SOME MORE … With the following elements, provide their formulas Oxygen and Lithium Oxygen = O -2 Lithium = Li +1 Li O Li Li 2 O -2

Sodium and Nitrogen Nitrogen= N -3 Sodium= Na +1 Na NNa Na 3 N -3 Na +1

Bromine and Beryllium Bromine= Br -1 Beryllium= Be +2 Be Br Br BeBr 2 -1

Aluminum and Sulfur Aluminum= Al +3 AlS Al Al 2 S 3 -2 Sulfur= S -2 S S -2

Strontium and Phosphorous Strontium= Sr +2 Sr P Sr Sr 3 P 2 -3 Phosphorous= P -3 P Sr +2

R ULES FOR NAMING COMPOUNDS Metal in front Nonmetal – change the back to –ide CUT OFF NAME AT THE SECOND VOWEL then add -IDE Example NaCl Answer Sodium Chloride

E XAMPLE OF N AMING Li 2 OLithium oxide Na 3 NSodium nitride BeBr 2 Beryllium bromide Al 2 O 3 Aluminum oxide Sr 3 P 2 Strontium phosphide

I N -C LASS P RACTICE -  Provide the name or formula for the following compounds. a. Barium oxidee. MgO b. Calcium chloridef. Na 2 S c. Aluminum oxideg. Li I d. Cesium nitrideh. SrF 2 BaO CaCl 2 Al 2 O 3 Ce 3 N Magnesium oxide Sodium sulfide Lithium iodide Strontium fluoride

I N -C LASS - I ONIC B ATTLESHIP I SHEET

H OMEWORK : F INISH UP – I ONIC B ATTLESHIP PRACTICE I