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Ch.9 - Bonding & Molecular StructureWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch.17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds
Lewis Dot Symbols
Chemical Bonds
Dipole Moment
Octet Rule
Formal Charge
Lewis Dot Structures: Neutral Compounds
Lewis Dot Structures: Sigma & Pi Bonds
Lewis Dot Structures: Ions
Lewis Dot Structures: Exceptions
Lewis Dot Structures: Acids
Resonance Structures
Average Bond Order
Bond Energy
Coulomb's Law
Lattice Energy
Born Haber Cycle

The Octet Rule states that main-group elements will generally form enough bonds to obtain 8 electrons in their valence shell. 

The Octet Rule

Concept #1: Octet Rule

Example #1: Which of the following statements is true in terms of the following compound:

Practice: How many shared electrons are around the oxygen atom?

a) 4

b) 2

c) 6

d) 10

e) 8

Practice: Which of the following atoms has the most valence electrons?

a) O 

b) Be 

c) He

d) N

e) Si

Concept #2: Incomplete Octet vs. Expanded Octet

Some elements can have less or more than 8 octet electrons around them while still maintaining stability.

Example #2: How many octet electrons are around the phosphorus atom in the following compound?

Practice: Which of the following contains an atom that may have an incomplete octet?

a) CCl4

b) NCl3

c) OCl2

d) SeCl6

e) BCl3