Add Page5.Locate the Lewis dot structures and make models of PF, and BCh (which each have threeatoms surrounding the central atom). Do you think the geometries (shapes) are the same?Explain. What is different about the two molecules? What effect might this difference have onthe shape?Locate the dot structures and make models of CS, and H,O (which each have two atomsaround the central one). Do you think the geometries the same? Why or why not?Electron pairs, whether they are shared between two nuclei in a bond or are lone pairs, will repel andarrange themselves as far away from each other as possible in three dimensional space. A central atomwith two shared and two lone pairs will have the same electron pair geometry as a central atom withfour shared pairs. However, the geometry of the molecule as we "sense" it is determined by the nuclei.We do not "see" lone pairs. Therefore the geometry of molecules with lone pairs will be different thanthose with just shared electron pair.A multiple bond between two atoms means that there is more electron density between those nuclei.For geometric considerations, the double or triple bond is treated like a single bond. A central atomwith two single and one double bond will arrange the electron pairs as if it has three electron pairsassociated with it.Complete Table 2 as you did for Table 1 keeping in mind lone pairs and multiple bonds.Determine the geometry of all electron pairs, called the electron pair geometry. We cannot seelone pairs when we image a molecule (we Asee@ nuclei by x-ray diffraction techniques) so themolecular geometry is determined by taking the electron geometry and removing the lone pairs6.101Exploring the Chemical World, PGCC, 2003

Hii there, As there are multiple question posted. we are answering first question. If you need…

Locate the Lewis dot structures and make models of PF, and BC, (which each have three atoms surounding the central atom). Do you think the geometries (shapes) are the same? Explain. What is different about the two molecules? What effect might this difference have on the shape? Locate the dot structures and make models of CS, and H,O (which each have two atoms around the central one). Do you think the geometries the same? Why or why not?

Locate the Lewis dot structures and make models of PF, and BC, (which each have three atoms surounding the central atom). Do you think the geometries (shapes) are the same? Explain. What is different about the two molecules? What effect might this difference have on the shape? Locate the dot structures and make models of CS, and H,O (which each have two atoms around the central one). Do you think the geometries the same? Why or why not?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Quantum Mechanical Treatment of the Valence Bond Theory

Quantum mechanical treatment of valence bond theory refers to the relationship established between the quantum mechanical theory and the valence bond theory to describe the chemical bonding in a particular molecule.

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Add Page
5.
Locate the Lewis dot structures and make models of PF, and BCh (which each have three
atoms surrounding the central atom). Do you think the geometries (shapes) are the same?
Explain. What is different about the two molecules? What effect might this difference have on
the shape?
Locate the dot structures and make models of CS, and H,O (which each have two atoms
around the central one). Do you think the geometries the same? Why or why not?
Electron pairs, whether they are shared between two nuclei in a bond or are lone pairs, will repel and
arrange themselves as far away from each other as possible in three dimensional space. A central atom
with two shared and two lone pairs will have the same electron pair geometry as a central atom with
four shared pairs. However, the geometry of the molecule as we "sense" it is determined by the nuclei.
We do not "see" lone pairs. Therefore the geometry of molecules with lone pairs will be different than
those with just shared electron pair.
A multiple bond between two atoms means that there is more electron density between those nuclei.
For geometric considerations, the double or triple bond is treated like a single bond. A central atom
with two single and one double bond will arrange the electron pairs as if it has three electron pairs
associated with it.
Complete Table 2 as you did for Table 1 keeping in mind lone pairs and multiple bonds.
Determine the geometry of all electron pairs, called the electron pair geometry. We cannot see
lone pairs when we image a molecule (we Asee@ nuclei by x-ray diffraction techniques) so the
molecular geometry is determined by taking the electron geometry and removing the lone pairs
6.
101
Exploring the Chemical World, PGCC, 2003

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