Understanding Hybridization in Central Atoms: NH3, SO2, and NH4+

In summary, NH3, SO2, and NH4+ all have a hybridization of sp3. However, SO2 is also sp2 due to the formation of two pi bonds with oxygen and a lone pair on sulfur. This can be seen in the Lewis dot structure. NH3 and NH4+ remain sp3 due to the presence of four hybridized orbitals.
  • #1
UnD3R0aTh
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http://img577.imageshack.us/img577/2892/3kow.png

both NH3 and SO2 and NH4+ have hybridization sp3
 
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  • #2
UnD3R0aTh said:
both NH3 and SO2 and NH4+ have hybridization sp3

That is incorrect.
 
  • #3
i just googled i found out that so2 is sp2, but why?! S has 6 valence elctrons two engage in sigma bond with two oxygens, and remains two pairs of electrons which means 4 hybridized orbitals SP3!
 
  • #4
In addition to the two sigma bonds, two pi bonds are formed with the oxygens, and a lone pair is left on the sulfur, so it is hybridized sp2.
 
  • #5
UnD3R0aTh said:
i just googled i found out that so2 is sp2, but why?! S has 6 valence elctrons two engage in sigma bond with two oxygens, and remains two pairs of electrons which means 4 hybridized orbitals SP3!

Try to draw a Lewis dot structure. There are no two pairs.
 
  • #6
yes u are right it's NH3 and NH4+ because both are sp3, thx
 

1. What is central atom hybridization?

Central atom hybridization is a concept in chemistry that explains the bonding and structure of molecules. It involves the mixing of atomic orbitals to form new hybrid orbitals, which determines the shape and geometry of molecules.

2. How do you determine the hybridization of a central atom?

The hybridization of a central atom can be determined by counting the number of bonding and lone pairs of electrons around the atom. The total number of electron pairs corresponds to the hybridization, with one pair being sp, two pairs being sp2, and three pairs being sp3.

3. Why is understanding central atom hybridization important?

Understanding central atom hybridization is important because it helps predict the shape and properties of molecules. It also allows chemists to understand the type of bonds and the strength of these bonds within a molecule, which is crucial for understanding chemical reactions.

4. Can central atom hybridization change in a molecule?

Yes, central atom hybridization can change in a molecule. This can occur when a molecule undergoes a chemical reaction or when the atoms involved in the molecule have different hybridization states. The change in hybridization can affect the shape and properties of the molecule.

5. How does central atom hybridization affect bond angles?

The type of hybridization of a central atom affects the bond angles in a molecule. For example, molecules with sp hybridization have bond angles of 180 degrees, while molecules with sp2 hybridization have bond angles of 120 degrees. This is because the hybrid orbitals have specific orientations that determine the angle between bonds.

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