Predict the geometry and polarity of the CS2 molecule.linear, polarlinear, nonpolartetrahedral, nonpolarbent, nonpolarbent, polar
Question
Predict the geometry and polarity of the CS2 molecule.linear, polarlinear, nonpolartetrahedral, nonpolarbent, nonpolarbent, polar
Solution
The geometry of the CS2 molecule can be predicted using the VSEPR (Valence Shell Electron Pair Repulsion) theory.
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First, we need to determine the central atom, which is Carbon (C) in this case.
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Next, we count the total number of valence electrons. Carbon has 4 valence electrons and each Sulfur (S) atom has 6 valence electrons. Since there are two Sulfur atoms, the total number of valence electrons is 4 + 2*6 = 16.
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We then distribute these electrons around the atoms, starting with the outer atoms (Sulfur), making sure each atom has an octet (8 electrons).
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After distributing the electrons, we find that there are no lone pairs on the Carbon atom, and it is bonded to two other atoms. According to the VSEPR theory, this means that the molecule has a linear shape.
As for the polarity, we need to look at the electronegativity of the atoms. Carbon and Sulfur have similar electronegativities, meaning the electrons are shared fairly equally and there is no significant charge separation. Therefore, CS2 is a nonpolar molecule.
So, the correct answer is: linear, nonpolar.
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