Scelta multipla
Given the molecule CH3CH2NH2, what is the hybridization state of the nitrogen atom (indicated in red)?
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12. Molecular Shapes & Valence Bond Theory
Hybridization
Scelta multipla
What is the hybridization of the carbon atom in the carbonate ion, CO_3^{2-}?
A
sp^2
B
sp
C
sp^3
D
sp^3d
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Identify the central atom in the carbonate ion, CO_3^{2-}, which is the carbon atom.
Determine the number of regions of electron density (bonding and lone pairs) around the carbon atom. In CO_3^{2-}, carbon is bonded to three oxygen atoms and has no lone pairs.
Since there are three regions of electron density around carbon, the electron geometry is trigonal planar.
Recall that trigonal planar geometry corresponds to sp^2 hybridization, where one s orbital and two p orbitals mix to form three sp^2 hybrid orbitals.
Conclude that the carbon atom in the carbonate ion is sp^2 hybridized.
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