Multiple Choice
What is the electron geometry (electron-domain geometry) around the sulfur atom in (i.e., with one lone pair on sulfur)?
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10. Chemical Bonding
Electron Geometry (Simplified)
Multiple Choice
What is the electron geometry (electron-domain geometry) of in VSEPR theory?
A
Trigonal bipyramidal
B
Trigonal planar
C
Tetrahedral
D
Linear
Verified step by step guidance1
Identify the central atom in the molecule H\_2S, which is sulfur (S).
Determine the number of valence electrons around the central atom. Sulfur has 6 valence electrons, and each hydrogen contributes 1 electron, for a total of 8 electrons or 4 electron pairs.
Count the number of bonding pairs and lone pairs around the central atom. In H\_2S, there are 2 bonding pairs (from the two S-H bonds) and 2 lone pairs on sulfur.
Use the VSEPR theory to determine the electron-domain geometry based on the total number of electron pairs (bonding + lone pairs). Four electron pairs correspond to a tetrahedral electron geometry.
Note that while the electron geometry is tetrahedral, the molecular shape (based on atoms only) is bent due to the lone pairs, but the question specifically asks for electron geometry.
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