Concept explainers
(a)
Interpretation:
The molecular shape of
Concept introduction:
In a Lewis structure, lines are represented for the bonding between atoms of a molecule and the dots for the lone pairs of electrons that may exist in the molecule.
Molecular shape can be predicted from the Lewis structure by using the valence-shell Electron-pair repulsion (VSEPR) model.
-Draw the Lewis structure.
-Count the number of valence electron pairs (bond pairs and lone pairs).
-Assume that the valence electron pairs form a structure that allows them to be as far away from each other as possible.
-If there are only two valence electron pairs, the molecule is linear.
-If there are three valence electron pairs, the molecule is shaped like an equilateral triangle.
-If there are four valence electron pairs, the molecule is shaped as a regular tetrahedral.
(b)
Interpretation:
The molecular shape of
Concept introduction:
In a Lewis structure, lines are represented for the bonding between atoms of a molecule and the dots for the lone pairs of electrons that may exist in the molecule.
Molecular shape can be predicted from the Lewis structure by using the valence-shell Electron-pair repulsion (VSEPR) model.
-Count the number of valence electron pairs (bond pairs and lone pairs).
-Assume that the valence electron pairs form a structure that allows them to be as far away from each other as possible.
- Multiple bonded atoms located in a plane.
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