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

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NH3 and NH4+ exhibit sp3 hybridization, while SO2 is incorrectly stated to be sp3; it is actually sp2 hybridized. The sulfur atom in SO2 has six valence electrons, forming two sigma bonds with oxygen and creating two pi bonds, which leads to its sp2 classification. The discussion emphasizes the importance of drawing Lewis dot structures to clarify hybridization. Participants agree that NH3 and NH4+ share the same sp3 hybridization characteristics. Understanding these distinctions is crucial for accurate molecular geometry and bonding analysis.
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both NH3 and SO2 and NH4+ have hybridization sp3
 
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UnD3R0aTh said:
both NH3 and SO2 and NH4+ have hybridization sp3

That is incorrect.
 
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!
 
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.
 
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.
 
yes u are right it's NH3 and NH4+ because both are sp3, thx
 

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