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QuestionChemistry

Predict the shape and bond angle for the compound carbon tetrafluoride, CF^4.
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Answer

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Step 1:
I'll solve this problem step by step, following the specified LaTeX formatting guidelines:

Step 2:
: Determine the Central Atom and Valence Electrons

- Total valence electrons: $$4 + (4 \times 7) = 32$$ electrons
- The central atom is carbon (C) - Carbon has 4 valence electrons - Fluorine (F) has 7 valence electrons

Step 3:
: Draw the Lewis Structure

- Carbon will form 4 single bonds with fluorine atoms - Each fluorine atom will have 3 lone pairs - Total electron arrangement follows the octet rule

Step 4:
: Apply VSEPR Theory

- Count electron domains around the central carbon - 4 bonding domains (C-F bonds) - 0 lone pair domains - Total electron domains: 4

Step 5:
: Predict Molecular Geometry

- With 4 electron domains and 0 lone pairs - Molecular geometry is tetrahedral - Electron domain geometry is also tetrahedral

Step 6:
: Determine Bond Angle

- Bond angle between any two bonds is $$109.5^\circ
- In a perfect tetrahedral arrangement

Final Answer

- Shape: Tetrahedral - Bond Angle: 109.5^\circ