entry task- block #2 nov. 7 th -8 th ouestions: name 3 properties of ionic compounds. you have 5...
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Entry Task- Block #2 Nov. 7th-8th
OUESTIONS:
Name 3 properties of ionic compounds.
YOU have 5 minutes!
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AGENDA: Go over Ch. 8 section 1-2 wsHW: Ionic Battleship I w.s
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CH. 8 SECTION 1-2 WS
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NOTES ON IONIC
COMPOUNDS
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1. Locate on periodic tableEx: 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
RULES FOR WRITING A COMPOUND FORMULA
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LETS PRACTICEWith the following elements, provide
their formulasChlorine 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.
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LETS PRACTICE SOME MORE…With the following elements, provide
their formulasOxygen and Lithium
Oxygen = O-2
Lithium = Li+1
Li OLi
+ 2 +
1+1
Li2
O
-2
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Sodium and Nitrogen
Nitrogen= N-3
Sodium= Na+1 Na
NNa+ 3
+
1+1
Na3
N
-3
Na+1
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Bromine and Beryllium
Bromine= Br-1
Beryllium= Be+2 B
eBrBr -
2
+
2 -1
BeBr2
-1
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Aluminum and Sulfur
Aluminum= Al+3 Al S
Al+ 6 +3
+3
Al2S3
-2
Sulfur= S-2
S - 6-2S-2
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Strontium and Phosphorous
Strontium= Sr+2 Sr P
Sr+ 6
+2+2
Sr3P2
-3
Phosphorous= P-3
P- 6
-3Sr+2
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RULES 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
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EXAMPLE OF NAMING
Li2O Lithium oxide
Na3N Sodium nitride
BeBr2 Beryllium bromide
Al2O3 Aluminum oxide
Sr3P2 Strontium phosphide
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IN-CLASS PRACTICE- Provide the name or formula for the following
compounds.
a. Barium oxide e. MgO
b. Calcium chloride f. Na2S
c. Aluminum oxide g. LiI
d. Cesium nitride h. SrF2
BaO
CaCl2
Al2O3
Ce3N
Magnesium oxideSodium sulfide
Lithium iodide
Strontium fluoride
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IN-CLASS- IONIC BATTLESHIP I SHEET
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HOMEWORK:
FINISH UP – IONIC BATTLESHIP PRACTICE I