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• Visit: https://checkin.ics.uci.edu/
• Log in and select Chem 1A.
• When prompted, type the word of the day: ionic
• Ensure when asked if you will share your location you select “allow”.
• Visit: https://learningcatalytics.com/
• Sign in MasteringChemistry account name When prompted, type session ID: 89555625
Remember back 5 rows of even side
are no seating zones
Plan ordering for the day:
Finish up periodic trends “exceptions”
Review a couple homework problems together
Alone “quiz” questions for day.
More homework questions
Ionic and covalent bonding powerpoint.
• Carbon, Nitrogen and oxygen
Rank in order of effective nuclear charge:
Increasing: effective nuclear charge
C, N, O
Visit: https://checkin.ics.uci.edu/ • Word of the day: ionicEnsure when asked if you will share your location you select “allow”.
LearningCatalytics: session 89555625
• Carbon, Nitrogen and oxygen
Rank in order of ionization energy:Increasing: effective nuclear charge
C, N, O
Increasing: ionization energy
C, O, N
N: [He]2s22p3
O: [He]2s22p4
C: [He]2s22p2
Visit: https://checkin.ics.uci.edu/ • Word of the day: ionicEnsure when asked if you will share your location you select “allow”.
LearningCatalytics: session 89555625
• Carbon, Nitrogen and Oxygen
Rank in order of electron affinity:Increasing: effective nuclear charge
C, N, O
Increasing: ionization energy
C, O, N
Increasing: electron affinity
N, C, ON: [He]2s22p3
O: [He]2s22p4
C: [He]2s22p2
Visit: https://checkin.ics.uci.edu/ • Word of the day: ionicEnsure when asked if you will share your location you select “allow”.
LearningCatalytics: session 89555625
• Carbon, Nitrogen and oxygen
Rank in order of increasing radius: Increasing: effective nuclear charge
C, N, O
Increasing radius
O, N, C
Increasing: ionization energy
C, O, N
Increasing: electron affinity
N, C, ON: [He]2s22p3
O: [He]2s22p4
C: [He]2s22p2
Visit: https://checkin.ics.uci.edu/ • Word of the day: ionicEnsure when asked if you will share your location you select “allow”.
LearningCatalytics: session 89555625
• Carbon, Nitrogen and oxygen
Rank in order of increasing electronegativityIncreasing: effective nuclear charge
C, N, O
Increasing radius
O, N, C
Increasing: ionization energy
C, O, N
Increasing: electron affinity
N, C, O
Increasing electronegativity
C,N,OVisit: https://checkin.ics.uci.edu/
• Word of the day: ionicEnsure when asked if you will share your location you select “allow”.
LearningCatalytics: session 89555625
Ionic and Covalent BondingIncluding Naming
Note: We likely won’t make it to covalent nomenclature, this is the one students find FAR easier than ionic. Please refer to the videos and naming hand out for help with this, and as always office hours, discussions, and facebook for extra help. If you don’t remember it from high school/1P.
Visit: https://checkin.ics.uci.edu/ • Word of the day: ionicEnsure when asked if you will share your location you select “allow”.
LearningCatalytics: session 89555625
HOMEWORK REVIEW
K+, I-
….Extending, for MgO, how many electrons are traded?
one electron traded
Mg2+, O2- two electrons traded
“quiz” question (remember, work alone but use whatever you want to help you)
Visit: https://checkin.ics.uci.edu/ • Word of the day: ionicEnsure when asked if you will share your location you select “allow”.
LearningCatalytics: session 89555625
TYPES OF BONDS
Ionic:
Covalent:
Metallic:
•“trades” electrons• Metal and a non-metal
(oversimplified definition)
•“shares” electrons•non-metals
(oversimplified definition)
•delocalized electrons•metals•electrically conductive•collective description of many bonds
NaCl
CO
Ag
For the Following Choose the Ionic Compounds
(based on previous definition)
•NaCl
•CH3Cl
•MgCl2
•SO2
•Na2SO3
Visit: https://checkin.ics.uci.edu/ • Word of the day: ionicEnsure when asked if you will share your location you select “allow”.
LearningCatalytics: session 89555625
Visit: https://checkin.ics.uci.edu/ • Word of the day: ionicEnsure when asked if you will share your location you select “allow”.
LearningCatalytics: session 89555625
For the binary ionic compounds in the last slide, decide which has more covalent
character. Reminder note from videos (see slides included FYI):
Summary of slides:
The more polarizing power and polarizability lead to a bond with more covalent
character.
Small highly charged cations have more polarizing power.
Large highly negatively charged anions have more polarizability.
NaCl MgCl2Anions are the same, this won’t
affect covalent character
For cations which have more polarizing power?
Mg2+ is smaller with a higher charge, it has more polarizing power.
Therefore MgCl2 has more covalent character.
Visit: https://checkin.ics.uci.edu/ • Word of the day: ionicEnsure when asked if you will share your location you select “allow”.
LearningCatalytics: session 89555625
NAMING: IONIC• Name the Compounds we identified as ionic
on the first problem.
•NaCl
•MgCl2
•Na2SO3
Sodium chloride
Magnesium chloride
Sodium sulfite
NAMING: COVALENT• Name the Compounds below.
• SO2
•NO
• PCl5
Sulfur dioxide
Nitrogen monoxide
Phosphorous pentachloride