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VSEPR Theory Postulates
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VSEPR Theory Postulates

Created by
@ResilientUnicorn

Questions and Answers

What determines the shape of a polyatomic molecule according to the VSEPR theory?

  • The size of the central atom
  • The total number of valence shell electron pairs (correct)
  • The number of lone pairs around the central atom
  • The number of bond pairs around each constituent atom

    • In VSEPR theory, what does the orientation of electron pairs aim to achieve?

  • Maximize electron-electron repulsion and minimize distance between them
  • Minimize electron-electron repulsion and maximize distance between them (correct)
  • Align electron pairs in a linear fashion
  • Randomly distribute electron pairs around the central atom

    • When a central atom is surrounded by both lone pairs and bond pairs, what can be expected about the molecule's shape?

  • It will have a distorted shape (correct)
  • It will be perfectly symmetrical
  • It will be non-polar
  • It will have a linear shape

    • What happens to the energy of a molecule when electron pairs around the central atom are closer?

    <p>The energy increases</p> Signup and view all the answers

    What is the effect of electron pairs lying far apart from each other in a molecule?

    <p>Decreased repulsions and lower energy</p> Signup and view all the answers

    According to VSEPR theory, where are electron pairs localized in a valence shell?

    <p>On the surface of a sphere</p> Signup and view all the answers

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