Ionic Bonding 2008
-
Upload
migratorycoconut -
Category
Economy & Finance
-
view
684 -
download
0
description
Transcript of Ionic Bonding 2008
![Page 1: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/1.jpg)
Chemical Bonds:Chemical Bonds:Ionic BondingIonic Bonding
Parts 4.2 & 4.3Parts 4.2 & 4.3
![Page 2: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/2.jpg)
Goal 1Goal 1
Understand the Understand the basisbasis of of and describe the and describe the
characteristicscharacteristics of of ionicionic bondingbonding
![Page 3: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/3.jpg)
Why bond?Why bond?
Full outer shellFull outer shell
Valence electronsValence electrons
![Page 4: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/4.jpg)
Full outer shellFull outer shell
H H 2 e- 2 e-
All others All others 8 e- 8 e-
Happy!Happy!
![Page 5: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/5.jpg)
Recall Ion formationRecall Ion formation
Gain or loss of electronGain or loss of electron
Gain electron = “-” chargeGain electron = “-” charge
Lose electron = “+” chargeLose electron = “+” charge
![Page 6: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/6.jpg)
Characteristics of Ionic BondsCharacteristics of Ionic Bonds
MetalMetal bonded with bonded with nonmetalnonmetal
![Page 7: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/7.jpg)
Forms “ionic compounds” aka “salts”Forms “ionic compounds” aka “salts”
![Page 8: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/8.jpg)
****TRANSFERTRANSFER**** electrons electrons
Metals Give (+ charge)Metals Give (+ charge)
Non-metals Receive (- charge)Non-metals Receive (- charge)
![Page 9: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/9.jpg)
Conducts electricity Conducts electricity onlyonly
In solutionIn solution
As liquidAs liquid
Because of electron movementBecause of electron movement
![Page 10: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/10.jpg)
Goal 2Goal 2
Determine the chemical Determine the chemical formula of an ionic formula of an ionic
compound by using the compound by using the charge on each ion charge on each ion
![Page 11: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/11.jpg)
MetalsMetals give away electrons give away electrons (+ charge)(+ charge)
Recall how to determine charge…Recall how to determine charge…
Group #Group #
Energy levelsEnergy levels
Li Li 1+ 1+
Mg Mg 2+ 2+
Ca Ca ___ ___
K K ___ ___
![Page 12: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/12.jpg)
NonmetalsNonmetals receive electrons receive electrons ( - charge)( - charge)
Recall how to determine chargeRecall how to determine charge
8 electrons8 electrons
Group #Group #
Energy levelEnergy level
F F 1- 1-
O O 2- 2-
P P ___ ___
Br Br ___ ___
![Page 13: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/13.jpg)
Ionic compounds strive for Ionic compounds strive for combined combined neutral (0)neutral (0) charge charge Neutral charge = 0 chargeNeutral charge = 0 charge Combined ions = 0 chargeCombined ions = 0 charge
Sum of charges must = 0Sum of charges must = 0
![Page 14: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/14.jpg)
Try it…Try it… Na Na 1+ 1+ Cl Cl 1- 1- How many of each to = 0 charge?How many of each to = 0 charge?
![Page 15: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/15.jpg)
NaNa1+1+ and Cl and Cl 1-1- = 0 charge = 0 charge
(The charges should add to 0)(The charges should add to 0)
One sodium ion + One chlorine ion = 0 One sodium ion + One chlorine ion = 0 chargecharge
Chemical formula isChemical formula is
NaClNaCl
![Page 16: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/16.jpg)
That was fun!That was fun!
Let’s try it again!!Let’s try it again!!
![Page 17: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/17.jpg)
Mg Mg 2+ 2+ Cl Cl 1- 1- How many of each to = 0 charge?How many of each to = 0 charge?
![Page 18: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/18.jpg)
MgMg2+2+ and Cl and Cl 1-1- = 1+ charge = 1+ charge (2) + (-1) = 1(2) + (-1) = 1
Uh Oh!!!Uh Oh!!!
One Magnesium ion + One chlorine ion = 1+One Magnesium ion + One chlorine ion = 1+
![Page 19: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/19.jpg)
MgMg2+2+ and and ClCl 1-1- and and ClCl 1-1- = = 00 charge charge2 + (1-) + (1-) = 02 + (1-) + (1-) = 0
For every For every one magnesiumone magnesium ion, we ion, we need need two chlorinetwo chlorine ions ions
Chemical Formula Chemical Formula
MgClMgCl22
![Page 20: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/20.jpg)
Your turn…Your turn…
What is the chemical formula for an What is the chemical formula for an ionic compound of ionic compound of
potassiumpotassium
and and
sulfursulfur??
![Page 21: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/21.jpg)
KK22SS
Were you correct?Were you correct?
![Page 22: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/22.jpg)
Try some moreTry some more
Sodium and PhosphorusSodium and Phosphorus
Lithium and NitrogenLithium and Nitrogen
Strontium and BromineStrontium and Bromine
![Page 23: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/23.jpg)
Ask Ms. Acker about theAsk Ms. Acker about the
Criss - CrossCriss - Cross
![Page 24: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/24.jpg)
Goal 3Goal 3
Name ionic compoundsName ionic compounds
![Page 25: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/25.jpg)
Step one:Step one: Say the metalSay the metal
Step two:Step two: Say the nonmetal with an “ ide” endingSay the nonmetal with an “ ide” ending
![Page 26: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/26.jpg)
NaCl = Sodium ChlorNaCl = Sodium Chlorideide
KCl = Potassium ChlorKCl = Potassium Chlorideide
MgClMgCl2 2 = Magnesium Chlor= Magnesium Chlorideide
KF = _________________KF = _________________
LiLi22S = __________________S = __________________
______= Beryllium Sulf______= Beryllium Sulfideide
____ = Sodium phosph____ = Sodium phosphideide
![Page 27: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/27.jpg)
Goal 4Goal 4
Use electron dot Use electron dot structures to show ionic structures to show ionic
compound formationcompound formation
![Page 28: Ionic Bonding 2008](https://reader033.fdocuments.us/reader033/viewer/2022052522/554132b64a795908628b4590/html5/thumbnails/28.jpg)
It’s all about the valence electronsIt’s all about the valence electrons Metals give (away extras)Metals give (away extras) Nonmetals receive (to fill outer shell)Nonmetals receive (to fill outer shell)
Ms. Acker will now show you on the boardMs. Acker will now show you on the board
Please take notePlease take note