CH33 – Bond Polarity

CRYSTAL LATTICE = NOT A MOLECULE

Dates

• P4 – Monday, November 13th
• P5 – Monday, November 13th
• P7 – Monday, November 13th

Quiz – Lewis Structures

• one formula
• total valence electrons
• Lewis structure
• Formal charge on each atom

New Idea – Bond Polarity [Presentation]

• • Not a crystal lattice (see above)
  • Unequal sharing of electrons
  • this “pull” = electronegativity
  • PT trends – which type of element pulls more? less?
  • There is a number
  • Show on 3D version of molecule
  • How do they add up?
  • examples! BI₃, CHCl₃, HOCl, BrF₃

Homework

• Chapter Notes: 8.1-8.3
• PDF to Schoology