(a)
Interpretation:
The electron-pair geometry for each carbon atom in
Concept introduction:
The electron pairs in Lewis diagrams repel each other in real molecule and thus they distribute themselves in positions around the central atoms which are far away from one another. This arrangement of electron pairs is called electron-pair geometry. The electron pairs may be shared in covalent bond, or they may be lone pairs.
Answer to Problem 24E
The Lewis diagram for the molecule
The electron pair geometry for the carbon atoms
Explanation of Solution
To write the Lewis diagram for a compound, first the number of valence electrons is to be calculated. In the molecule,
The atom which is least electronegative and lesser in number is the central atom. In
Figure 1
The electron-pair geometry depends on the number of electron pairs around the central atoms. In the molecule
The Lewis diagram for the molecule
(b)
Interpretation:
The molecular geometry predicted by the valence shell electron-pair repulsion theory for each carbon atom in the molecule
Concept introduction:
Molecular geometry is the precise term that is used to describe the shape of molecules and arrangement of atoms around the central atom. The molecular geometry of a molecule is predicted by valence shell electron-pair repulsion theory or in short VSEPR theory. VSEPR theory applies to substances in which a second period element is bonded to two, three, four, or other atoms.
Answer to Problem 24E
The Lewis diagrams for
The molecular geometry is tetrahedral for the carbons
Explanation of Solution
To write the Lewis diagram for a compound first the number of valence electrons is to be calculated. In the molecule
The atom which is least electronegative and lesser in number is the central atom. In
Figure 1
The molecular geometry depends on the number of electron pairs as well as number of unpaired electron on the central atoms. In the molecule
The Lewis diagram for the molecule
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Chapter 13 Solutions
Introductory Chemistry: An Active Learning Approach
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