Hybridization: Is it Symmetrical or Unsymmet Bond Angles: Is it Polar or Non-polar Molecul sStructure Electronic Geometry and Angles and Hybridization the Ocet Rule Identify the Polarity of the M lectrons around S) Electronic groups: Draw structure with the dipole central atom Electronegativity values Electronic Geometry: Molecular Geometry: Hybridization: Is it Symmetrical or Unsymmet Bond Angles: Is it Polar or Non-polar Molecul

Molecule or Polyatomic CHzCl 2- Co₂² CH4 CS₂ H₂O Lewis structure H-C-CI: H H H-C-H H s=c=s H–O–H 2- Hybrid- ization AXE 3 sp³ AX4 2 sp² AX3 3 sp³ AX4 sp AX2 3 sp³ AX₂E2 Electron pair geometry Molecular shape tetrahedral tetrahedral trigonal planar trigonal planar tetrahedral tetrahedral linear linear tetrahedral bent Bond angles all ~109.5° all 120° all ~109.5° 180° ~109.5° Bond Polarity H C 2.5 2.1 Cl 2.5 3.0 CO 2.5 3.5 C-H 2.5 2.1 Molecular Polarity if the molecule is polar, add a dipole arrow if not polar, state so and why H H H i no molecular polarity because of shape CI H H HC H no polar bonds, so no molecular polarity H S=C=S H

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What would you expect to be the electron-group arrangement around atom A in the following case? Give the ideal bond angle and the direction of any expected deviation.h5sil102302Electron-group arrangement:linearbent (V-shaped)trigonal bipyramidal Ideal bond angle:°Expected angle deviation:smallerlargernone

= O ELECTRONIC STRUCTURE AND CHEMICAL BONDING Counting sigma and pi bonds in a small molecule Answer the questions below about the highlighted atom in this Lewis structure: H 1 H -C. | H - — -C=C-H In how many sigma bonds does the highlighted atom participate? In how many pi bonds does the highlighted atom participate? What is the orbital hybridization of the highlighted atom? 00 0 X

Predict the approximate bond angle in the molecule. 0=0 0: bond angle: about us I privacy policy terms of use contact us careers T國AG étv 26 MacBook Air 80 00 000 DII F3 F4 F5 F6 F7 F8 * $ &

Formula HCN SBr₂ NSF (N is central) SO3 Total valence e- (show calc) COBR2 (C is ventrall 1+4+5=10 e- Structure H—C=N: Total electron groups 2 Geometry (Shape) linear Angle 180° Polar? Y/ N if yes state why outer atoms different

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Examine the model and real structures for ClF3. Why are the lone pairs in this molecule located in equatorial positions rather than axial positions?

five electron groups around the central Se atom. There are bent The electron-group geometry is linear The number of atoms attached to the central Se atom is trigonal pyramidal tetrahedral The shape of the molecule is four two three trigonal planar six ious