QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
Which of the following describes where a molecular geometry can differ from an electron-pair geometry?
# Choose one:
A. A molecular geometry differs from an electron-pair geometry when the steric number and the number of lone pairs on a central atom are identical.
B. A molecular geometry differs from an electron-pair geometry when the central atom in a molecule has no lone pairs of electrons.
C. A molecular geometry and electron-pair geometry cannot differ, so no state can describe this situation.
D. A molecular geometry differs from an electron-pair geometry when the central atom in a molecule has lone pairs of electrons.
E. A molecular geometry differs from an electron-pair geometry when the steric number and the number of atoms bonded to the central atom in a molecule are identical.
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Step 1Let's solve this step by step:
Step 2: Understand the key concepts
- Electron-pair geometry describes the arrangement of ALL electron pairs (bonding and lone pairs) around a central atom - Molecular geometry describes the arrangement of ONLY the atoms around the central atom
Final Answer
A molecular geometry differs from an electron-pair geometry when the central atom in a molecule has lone pairs of electrons.
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