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Chemistry  /  Chem 1040  ·  Atom · ~20 seconds

Molecular Geometry

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Molecular geometry names only the arrangement of bonded atoms around a central atom, though unnamed lone pairs still shape that arrangement.

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Ammonia's molecular geometry is trigonal pyramidal, naming its three hydrogens, though its electron-pair geometry is tetrahedral.

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Using the two terms interchangeably misreports whether a lone pair is being counted.