What is the hybridization of the central atom of each of the following molecules? Match the atoms below with their number---sp, sp2, sp3, sp3d, sp3d2
COH2
H2S
PBr5
The hybridization of an organic compound can be explained using the electronic geometry of the compound. Electronic geometry gives information about both bond pair and lone pair of electrons. The geometry of a molecule can be described by Valence Shell Electron Pair Repulsion (VSEPR) theory.
A Lewis structure is used to determine the electronic geometry as well as molecular geometry of a molecule.
A Lewis structure is a skeletal structure with all the elements and non-bonding electrons shown. Two electrons indicate one electron pair.
The table for hybridization with respect to electronic geometry using different combinations of bonds and lone pairs of electrons present on central atom is below:
Number of atom/group attached to central atom | Number of lone pair of electrons on central atom | Electron geometry | Hybridization of the central atom |
2 | 0 | Linear |
|
3 | 0 | Trigonal planar |
|
2 | 1 | Trigonal planar |
|
4 | 0 | Tetrahedral |
|
3 | 1 | Tetrahedral |
|
2 | 2 | Tetrahedral |
|
5 | 0 | Trigonal bipyramidal |
|
4 | 1 | Trigonal bipyramidal |
|
3 | 2 | Trigonal bipyramidal |
|
2 | 3 | Trigonal bipyramidal |
|
6 | 0 | Octahedral |
|
5 | 1 | Octahedral |
|
4 | 2 | Octahedral |
|
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