When one hears the word pyramid, one usually thinks of the Great Pyramids of Egypt shown in the photo to the left. These pyramids have a square base and would be called square pyramids. A trigonal pyramid, as the name implies, has a triangular base instead of a square base. A model for PCl3 is shown in the chem3D window. PC13 has trigonal pyramidal geometry. ball & stick v + labels Rotate the molecule until you have a feeling for its three-dimensional shape. How many atoms are bonded to the central atom? If you consider only the three outer atoms, what shape do they define? Consider the bond angles at the central atom. Do they all have approximately the same numerical value? What is the approximate numerical value of this angle? v degrees. Does the central atom lie in the plane defined by the three other atoms? Are all three positions about the central atom equivalent, or is one of them different from the other two. For practice, type in the name of the geometry of the molecule:

When one hears the word pyramid, one usually thinks of the Great Pyramids of Egypt shown in the photo to the left. These pyramids have a square base and would be called square pyramids. A trigonal pyramid, as the name implies, has a triangular base instead of a square base. A model for PCl3 is shown in the chem3D window. PC13 has trigonal pyramidal geometry. ball & stick v + labels Rotate the molecule until you have a feeling for its three-dimensional shape. How many atoms are bonded to the central atom? If you consider only the three outer atoms, what shape do they define? Consider the bond angles at the central atom. Do they all have approximately the same numerical value? What is the approximate numerical value of this angle? v degrees. Does the central atom lie in the plane defined by the three other atoms? Are all three positions about the central atom equivalent, or is one of them different from the other two. For practice, type in the name of the geometry of the molecule:

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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