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4 cards from this section. Quick, good the night before a test.
What is an electron domain?
Think about how electrons are grouped around atoms.
How many electron domains would lead to a linear shape?
Consider how bonds arrange themselves to minimize repulsion.
What is the bond angle in a linear molecule?
Recall the geometry associated with two electron domains.
True or False: Lone pairs always decrease the bond angle compared to ideal angles.
Think about how lone pairs affect the space taken up around the central atom.
Predict the molecular geometry of a molecule with 4 electron domains, 2 of which are lone pairs. Justify your answer.
Consider how lone pairs change the position of bonding pairs.
Compare and analyze NH3 and H2O in terms of their electron domains and molecular shapes. What accounts for the difference in bond angles?
Reflect on how the number of lone pairs impacts the geometry.
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