Scelta multipla
Determine the structural formula for the following compound given as a molecular model.
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5. Molecules and Compounds
Molecular Models
Scelta multipla
Which of the following molecular models represents the ammonia molecule, NH3?
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Identify the chemical formula for ammonia, which is NH₃. This indicates one nitrogen (N) atom and three hydrogen (H) atoms.
Understand that in molecular models, different colors often represent different elements. Typically, nitrogen is represented by a blue sphere, and hydrogen is represented by white spheres.
Examine each molecular model provided. Look for a model with one blue sphere connected to three white spheres, which would represent the NH₃ structure.
Consider the geometry of the ammonia molecule. Ammonia has a trigonal pyramidal shape due to the lone pair of electrons on the nitrogen atom, which affects the arrangement of the hydrogen atoms.
Compare the models to the known structure and geometry of NH₃ to determine which model accurately represents ammonia.
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