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Questions and Answers
Which molecular geometry results from removing one horizontal bond from a trigonal bipyramidal molecule in a model-building exercise?
Which molecular geometry results from removing one horizontal bond from a trigonal bipyramidal molecule in a model-building exercise?
- T-shaped
- Seesaw (correct)
- Linear
- Square pyramidal
What molecular geometry is formed when two vertical bonds are removed from an octahedral molecule?
What molecular geometry is formed when two vertical bonds are removed from an octahedral molecule?
- Square pyramidal
- Seesaw
- Square planar (correct)
- T-shaped
In a molecular modeling activity, what molecular geometry is observed after removing three horizontal bonds from a trigonal bipyramidal molecule?
In a molecular modeling activity, what molecular geometry is observed after removing three horizontal bonds from a trigonal bipyramidal molecule?
- Square pyramidal
- T-shaped
- Seesaw
- Linear (correct)
Which of the following accurately describes the required contents of the final report after constructing molecular models with and without lone pairs?
Which of the following accurately describes the required contents of the final report after constructing molecular models with and without lone pairs?
What molecular geometry results from removing one vertical bond from an octahedral molecule in a model-building exercise?
What molecular geometry results from removing one vertical bond from an octahedral molecule in a model-building exercise?
Flashcards
Seesaw Shape
Seesaw Shape
Seesaw shape is derived from a trigonal bipyramidal arrangement by removing one equatorial bond (lone pair).
T-Shaped Molecule
T-Shaped Molecule
T-shaped molecule is derived from a trigonal bipyramidal arrangement by removing two equatorial bonds (two lone pairs).
Linear (from trigonal bipyramidal)
Linear (from trigonal bipyramidal)
Linear molecule (from trigonal bipyramidal) is created by removing three equatorial bonds (three lone pairs).
Square Pyramidal
Square Pyramidal
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Square Planar
Square Planar
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Study Notes
- Molecular models prepared initially represent molecules without lone pairs.
- Molecular models with lone pairs can be made by removing one or two cotton buds from the prepared models.
Creating Bent Shape Molecule
- Remove one cotton bud from the trigonal planar model.
- Bending the wire represents the lone pair.
Creating Trigonal Pyramidal Shape
- Remove one cotton bud from the tetrahedral molecule.
Creating Angular Bent Shape
- Remove two cotton buds from the tetrahedral molecule.
Creating Seesaw Shape
- Remove one of the horizontal bonds in the trigonal bipyramidal molecule.
Creating T-Shaped Molecule
- Remove two of the horizontal bonds in the trigonal bipyramidal molecule.
Creating Linear Molecule
- Remove three of the horizontal bonds in the trigonal bipyramidal molecule.
Creating Square Pyramidal Molecule
- Remove one of the vertical bonds (at the bottom) of the octahedral molecule.
Creating Square Planar Molecule
- Remove two of the vertical bonds (top and bottom) of the octahedral molecule.
Final Report Guidelines
- Include pictures of all molecular models, both with and without lone pairs.
- Each picture should have labels of electron pair geometry, molecular geometry, and bond angles.
- The report cover should display a picture of the the models combined with their representations.
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Description
Learn how to create molecular models representing molecules with lone pairs by modifying basic models. Understand the formation of bent, trigonal pyramidal, seesaw, T-shaped, linear, square pyramidal, and square planar shapes through cotton bud removal and wire bending techniques.
