ChemTeacher

Chemistry, Technology, Baseball, Swimming

CP31 – Dots! Structures!

acetic-acid

Date

  • Monday, November 6th

Class Business

  • Hand back Test 2
  • Answer key posted

New Idea – Dot Structures!

  • basis for using
  • valence electrons
  • single atoms
  • examples

New Idea – Molecules

  • show bonding between elements
  • shared v lone pairs
  • math?
  • examples

Rules

  • C / N / O / F  = octet always
  • H / F bond 1x only
  • C always in middle (no lone pairs)
  • look for ionic compounds

Practice – Draw the Lewis Structures

H2O CF4
HCN NH3
H2CO ClF2+1
PBr3 CH3Cl
C2H4 NO3-1

Requirements

  • formula
  • valence electron count math
  • Lewis Dot structure
  • central atom (total / bond / lone pairs)

Homework

  • Finish all compounds

Information

This entry was posted on November 3, 2017 by in CP1718 and tagged , .

Categories

%d bloggers like this: