Determine the shape of the following molecules using VSEPR theory. (a) SF 4 , (b) BrF 5

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Determine the shape of the following molecules using VSEPR theory.

(a) SF4

(b) BrF5

Strategy As always, we start by drawing the Lewis structures. Then count the number of electron pairs around the central atom and determine the spatial arrangement of electron pairs, consulting Table 7.3 as necessary. Place the lone pairs in positions where the electron repulsions are minimized and describe the resulting geometric arrangement of the atoms.

Table 7.3

Each of the geometrical arrangements shown in the table minimizes the electron pair repulsions for the

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Chemistry For Engineering Students

ISBN: 9780357026991

4th Edition

Authors: Lawrence S. Brown, Tom Holme

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