Chemistry Molecular Shapes Flashcards
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Questions and Answers

What is the electron geometry of IF4+?

  • Octahedral
  • Trigonal bipyramidal (correct)
  • Square pyramidal
  • Linear

    • What is the molecular geometry of BrF5?

  • Octahedral
  • Trigonal bipyramidal
  • Square pyramidal (correct)
  • Seesaw

    • What is the electron geometry of SF6?

  • Tetrahedral
  • Square pyramidal
  • Octahedral (correct)
  • Trigonal bipyramidal

    • The molecular geometry (shape) of HCN is __________

    <p>linear</p> Signup and view all the answers

    What is the electron geometry of CO2?

    <p>Linear</p> Signup and view all the answers

    What is the molecular geometry of ClF3?

    <p>T-shaped</p> Signup and view all the answers

    What is the electron geometry of SF4?

    <p>Trigonal bipyramidal</p> Signup and view all the answers

    The molecular geometry (shape) of PCl3 is __________

    <p>trigonal pyramidal</p> Signup and view all the answers

    The molecular geometry (shape) of SH2 is __________

    <p>bent</p> Signup and view all the answers

    What is the molecular geometry of ICl5?

    <p>Square pyramidal</p> Signup and view all the answers

    What is the electron geometry of SO3?

    <p>Trigonal planar</p> Signup and view all the answers

    What is the electron geometry of PCl5?

    <p>Trigonal bipyramidal</p> Signup and view all the answers

    What is the molecular geometry of SF6?

    <p>Octahedral</p> Signup and view all the answers

    What is the electron geometry of ClF3?

    <p>Trigonal bipyramidal</p> Signup and view all the answers

    What is the molecular geometry of SO3?

    <p>Trigonal planar</p> Signup and view all the answers

    What is the electron geometry of XeF2?

    <p>Trigonal bipyramidal</p> Signup and view all the answers

    What is the electron geometry of H2O?

    <p>Tetrahedral</p> Signup and view all the answers

    The molecular geometry (shape) of NF3 is __________

    <p>trigonal pyramidal</p> Signup and view all the answers

    The molecular geometry (shape) of CH2O is __________

    <p>trigonal planar</p> Signup and view all the answers

    What is the electron geometry of ICl5?

    <p>Octahedral</p> Signup and view all the answers

    The molecular geometry (shape) of BeH2 is __________

    <p>linear</p> Signup and view all the answers

    The molecular geometry (shape) of CCl4 is __________

    <p>tetrahedral</p> Signup and view all the answers

    The molecular geometry (shape) of BH3 is __________

    <p>trigonal planar</p> Signup and view all the answers

    What is the electron geometry of XeF4?

    <p>Octahedral</p> Signup and view all the answers

    What is the molecular geometry of H2O?

    <p>Bent</p> Signup and view all the answers

    What is the electron geometry of I3−?

    <p>Trigonal bipyramidal</p> Signup and view all the answers

    The molecular geometry (shape) of SiH4 is __________

    <p>tetrahedral</p> Signup and view all the answers

    What is the molecular geometry (shape) of I3−?

    <p>Linear</p> Signup and view all the answers

    What is the molecular geometry of SF4?

    <p>Seesaw</p> Signup and view all the answers

    What is the electron geometry of BrF5?

    <p>Octahedral</p> Signup and view all the answers

    Study Notes

    Molecular Geometries and Electron Geometries

    • Trigonal Bipyramidal: Characterized by five pairs of electrons. Seen in IF4+, SF4, PCl5, and I3− as electron geometry.
    • Square Pyramidal: Present in BrF5, resulting from four bonds and one lone pair.
    • Octahedral: Six bonds connected to a central atom. Identified in SF6 and ICl5 as both electron and molecular geometry.
    • Linear Geometry: Two bonding pairs of electrons with bond angle of 180°. Observed in HCN, CO2, and BeH2.
    • T-Shaped Geometry: Found in ClF3, resulting from three bonding pairs and two lone pairs.
    • Trigonal Pyramidal: Observed in PCl3 and NF3, obtained from three bonding pairs and one lone pair.
    • Bent Shape: Found in SH2 and H2O, occurring due to two bonding pairs and two lone pairs.
    • Square Pyramid: Characterizes ICl5 with five bonds; one bond to a central atom forms a pyramid shape.
    • Trigonal Planar Geometry: Three bonding pairs with 120° angles. Identified in SO3, CH2O, and BH3.
    • Tetrahedral Geometry: Four bonding pairs in a 109.5° configuration. Seen in H2O and CCl4; essential in bonding scenarios.
    • Seesaw Shape: Depicted by SF4, generated from four bonding pairs and one lone pair on a central atom.
    • Key Bond Angles: Understanding bond angles helps predict molecular geometry—linear (180°), trigonal planar (120°), tetrahedral (109.5°), and octahedral (90° or 180°).

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    Test your knowledge of molecular shapes in chemistry with these flashcards! Each card focuses on a specific molecular geometry and asks for either the electron geometry or the type of molecular geometry for various compounds. Challenge yourself and reinforce your understanding of molecular shapes!

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