Multiple Choice
What is the molecular geometry of NBr3 based on its Lewis structure?
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12. Molecular Shapes & Valence Bond Theory
Molecular Geometry
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Which molecular geometry is associated with a bond angle of approximately 109.5° around the central atom?
A
Tetrahedral
B
Linear
C
Trigonal planar
D
Trigonal bipyramidal
Verified step by step guidance1
Recall that molecular geometry describes the three-dimensional arrangement of atoms around a central atom in a molecule.
Understand that bond angles are the angles between adjacent bonds around the central atom, influenced by the number of bonding pairs and lone pairs of electrons.
Identify common molecular geometries and their characteristic bond angles: Linear (180°), Trigonal planar (120°), Tetrahedral (approximately 109.5°), and Trigonal bipyramidal (90° and 120°).
Match the given bond angle of approximately 109.5° to the molecular geometry that typically exhibits this angle, which is the tetrahedral geometry.
Conclude that the molecular geometry associated with a bond angle of about 109.5° around the central atom is tetrahedral.
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