Determine the electron geometry, molecular geometry, and idealized bond angles for each of the following molecules. CF4CF4 NF3NF3 OF2OF2 H2S

Question

Determine the electron geometry, molecular geometry, and idealized bond angles for each of the following molecules. CF4CF4 NF3NF3 OF2OF2 H2SH2S In which cases do you expect deviations from the idealized bond angle

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Vân Khánh 5 years 2021-07-16T20:30:02+00:00 1 Answers 184 views 0

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  1. Philomena
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    2021-07-16T20:32:00+00:00
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    Answer:

    CF4

    Molecular geometry- tetrahedral

    Electron geometry- tetrahedral

    NF3

    -molecular geometry – trigonal pyramidal

    Electron geometry – tetrahedral

    OF2

    Molecular geometry – bent

    Molecular geometry – tetrahedral

    H2S

    Molecular geometry- bent

    Electron geometry – tetrahedral

    Explanation:

    According to Valence Shell Electron Pair Repulsion Theory, the shape of a molecule depends on the number of electron pairs on the valence shell of the central atom in the molecule.

    For all the compounds listed, the central atom has four points of electron density. This correspond to a tetrahedra electron pair geometry. The presence of lone pairs on the central atom of OF2,NF3 and H2S accounts for the departure of the observed molecular geometry from the geometry and idealized bond angle predicted on the basis of the VSEPR theory.

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