QQuestionChemistry
QuestionChemistry
Determine the electron geometry, molecular geometry, and polarity of N^2O (O central).
A. eg = linear, mg = linear, nonpolar
B. eg = tetrahedral, mg = linear, nonpolar
C. eg = tetrahedral, mg = bent, polar
D. eg = linear, mg = linear, polar
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Answer
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Step 1:Let's solve this step by step:
Step 2:: Determine the Lewis structure
- Total valence electrons: $$6 + 5 + 5 = 16$$ electrons
- N^2O with O as the central atom means the structure is O-N-N - Count valence electrons: * O: 6 valence electrons * N (first): 5 valence electrons * N (second): 5 valence electrons
Step 3:: Draw the Lewis structure
- Connect atoms: O-N-N - Distribute electrons to create a stable structure - Likely structure will have a triple bond between N atoms - Formal charge calculations confirm this arrangement
Step 4:: Determine electron geometry
- Electron geometry is $$\textbf{linear}
- Count electron domains around central O atom - O has two bonding domains (N-O bonds) - Total electron domains: 2
Step 5:: Determine molecular geometry
- Molecular geometry is also $$\textbf{linear}
- Two bonding domains around O
Step 6:: Determine polarity
- Therefore, the molecule is $$\textbf{polar}
- Linear molecule with different electronegativity between atoms - Asymmetric charge distribution
Final Answer
The correct answer is D: - Electron geometry = linear - Molecular geometry = linear - Polarity = polar
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