8.2 nature of covalent bonding
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8.2 Nature of Covalent Bonding
• Do Now – Build an oxygen molecule and an ammonia (NH3) molecule- Draw your model in your notes
• Objective – Octet Rule, Single/Double/Triple Covalent Bonds, Coordinate
Covalent Bonds
• HW – Start your 8.2 questions on page 229
Oxygen Ammonia
The Octet Rule BondingElectron sharing usually occurs so that atoms attain the electron configuration of noble gases.
Single Bonds
Ammonia
Unshared or Lone Pair
Double Bonds
• Carbon Dioxide
Double Bonds
• Do Now – Pass in 8.1 and 8.2 Homework Assignments
• Objective – Practice Molecular Models and Determining Structural Formulas
• Homework – Pg. 229 # 17 – 19 , 21, 22
• Do Now – Review previous homeworks • Any Questions???
• Objective – Finish 8.2 • Triple Bonds, Coordinate Covalent Bond, Bond
Dissociation Energy, Resonance
• Homework – Pg. 229 # 17-19, 21,22
Water Methanol
Ethylene
Butane Butanol
Glucose
Citric Acid
Triple Bonds / Coordinate Covalent Bonds
Nitrogen Molecule
Carbon Monoxide
Triple Bonds / Coordinate Covalent Bonds
Bond Dissociation Energy
• Energy required to break the bond between two covalently bonded atoms.
Resonance
Resonance
• Possible to draw two or more valid electron structures.
Exceptions to the Octet Rule
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