Connectivity

(Lecture id-1056)

TOPICS & OBJECTIVES

1005 - Lewis Exceptions
    1010 - Draw Lewis structures for molecular compounds and polyatomic ions.
    1020 - Draw Lewis structures for odd-electron species.
    1030 - Draw Lewis structures for molecules containing atoms with incomplete octets.
    1035 - Explain (using formal charge) why some elements favor incomplete octets.
    1040 - Draw Lewis structures for molecules containing atoms with expanded octets.
    1050 - Explain why only atoms in the third period and below may have expanded octets.
 
1010 - Resonance
    1010 - Define resonance structures and understand how Lewis structures represent hybrid structures.
    1020 - Define formal charge and understand how to calculate it for the atoms in a Lewis structure.
    1030 - Identify the formal charge on an atom in a Lewis structure.
    1040 - Use formal charge and resonance to predict the "best" possible Lewis structure.
    1050 - Identify alternative, equivalent resonance structures for a Lewis.
    1060 - Use resonance arrows to show all equivalent "best" resonance structures for a molecule.
 
1020 - Bond Energy
    1010 - Define bond energy.
    1020 - Assign bond order from Lewis structures.
    1025 - Assign relative bond length based on bond order.
    1030 - Understand the inverse relationship between bond length and bond strength.
    1035 - Estimate Heat of Reaction using average bond energies for bonds broken and formed.
    1040 - Understand how the electron sea model accounts for the general macroscopic properties of metals.
 


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