First thing: Please be Ready with iclickers out,

First thing: Please be Ready with iclickers out,

First thing: Please be Ready with iclickers out, everything else put away. (Candy/Toothpicks can stay out) For Credit iClicker Quiz Open Note: You may not use: Phones, books, ipads, computers or your neighbor Given the structure of OF2 answer the following questions: 1) What is the coordination number of O? A) 2 B) 3 C) 4 D) 5 E) 6

2) What is the steric number of O? A) 2 B) 3 C) 4 D) 5 E) 6 Please turn off all downloads. You can usually pause them by clicking on them and clicking pause. Facebook and youtube are officially banned during class time (this is not me micromanaging, its a legit internet issue as told to me by OIT). Visit: https://checkin.ics.uci.edu/ Log in and select Chem 1A. When prompted, type the word of the day: vsepr Remember back 5 Visit: https://learningcatalytics.com/ rows of even side

Sign in MasteringChemistry account name are no seating zones When prompted, type session ID: NO LEARNING CATALYTICS Ensure when asked if you will share your location you select allow. Visit: https://checkin.ics.uci.edu/ Word of the day: vsepr Ensure when asked if you will share your location you select allow. LearningCatalytics: session ID: NONE TODAY. Visit: https://checkin.ics.uci.edu/ : vsepr Ensure when asked if you will share your location you select allow. LearningCatalytics: session ID: NONE TODAY. SOME DEFINITIONS STERIC NUMBER: # BONDS+# ELECTRON PAIRS

COORDINATION NUMBER: NUMBER OF BONDED ATOMS Steric #: 4 Coord. #:3 Steric #: 5 Coord. #:5 Steric #: 6 Coord. #:5 SOME (MORE) DEFINITIONS ELECTRON GEOMETRY: GEOMETRY INCLUDING IF YOU SAW ELECTRON PAIRS MOLECULAR GEOMETRY: GEOMETRY WHERE YOU DONT SEE ELECTRON PAIRS BOND ANGLE: ANGLE BETWEEN BONDS. EG:Tetrahedral MG: Trig. pyramidal EG:Trig. bipyramidal

MG: Trig. bipyramidal EG:Octahedral MG: Square Pyramidal Visit: https://checkin.ics.uci.edu/ : vsepr Ensure when asked if you will share your location you se LearningCatalytics: session ID: NONE TODAY. Visit: https://checkin.ics.uci.edu/ : vsepr Ensure when asked if you will share your location you select allow. LearningCatalytics: session ID: NONE TODAY. PULL OUT YOUR WORKSHEET, CANDY AND TOOTHPICKS! Thanks to http://www.chemmybear.com/shapes.html for all animations on following slides! STERIC NUMBER 2

Linear Linear 180 Visit: https://checkin.ics.uci.edu/ : vsepr Ensure when asked if you will share your location you sele LearningCatalytics: session ID: NONE TODAY. Visit: https://checkin.ics.uci.edu/ : vsepr STERIC NUMBER 3 Ensure when asked if you will share your location you select allow. LearningCatalytics: session ID: NONE TODAY Trigonal Planar Trigonal Planar

Trigonal Planar Bent 120 <120 Examples: SO3, BF3, CO32- Examples: SO2, CCl2 STERIC NUMBER 4 Tetrahedral Tetrahedral 109.5 Examples:

CH4, SiH4, PO4 Tetrahedral Trigonal Pyramidal <109.5 Examples: NH3, PI3 Visit: https://checkin.ics.uci.edu/ : vsepr Ensure when asked if you will share your location you select allow. LearningCatalytics: session ID: NONE TODAY Tetrahedral Bent <109.5 and

Visit: https://checkin.ics.uci.edu/ : vsepr STERIC NUMBER 5 Ensure when asked if you will share your location you select allow. LearningCatalytics: session ID: NONE TODAY Trig. Bipyramidal Trig. Bipyramidal Trig. Bipyramidal Trig. Bipyramidal T-shaped linear Trig. Bipyramidal See-saw 90, 120 Examples: PCl5, SbF5 <90, <120 <90

Examples: Examples: TeCl4, SF4 ClF3, SeO32- 180 Examples: I3-, XeF2 STERIC NUMBER 6 Octahedral Octahedral Octahedral Square Pyramidal 90 Examples:

SF6, Mo(CO)6 <90 Examples: IF5, BrF5 Visit: https://checkin.ics.uci.edu/ : vsepr Ensure when asked if you will share your location you select allow. LearningCatalytics: session ID: NONE TODAY Octahedral Square planar 90 Examples: XeF4, ClF4-

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