identifying hybridization of a central atom


Moderators: Chem_Mod, Chem_Admin

duenezjuleny1D
Posts: 48
Joined: Fri Sep 28, 2018 12:24 am

identifying hybridization of a central atom

Postby duenezjuleny1D » Thu Nov 29, 2018 4:44 pm

while identifying the molecular geometry of a molecule how do you identify if it is non-polar or polar?

mcredi
Posts: 63
Joined: Fri Sep 28, 2018 12:16 am

Re: identifying hybridization of a central atom

Postby mcredi » Thu Nov 29, 2018 5:45 pm

Polar molecules occur when two atoms do not share electrons equally in a covalent bond. If the electronegativity difference between the atoms is greater than 2.0, the bond is ionic. Ionic compounds are extremely polar molecules. But if the dipole moments cancel out on there molecule, its symmetrical, then it is nonpolar. Also you can sometimes tell if the molecule will be polar depending on lone pairs. For example in a linear shape with two atoms that are the same, the addition of a lone pair would cause the molecule to become polar.

Mona Lee 4L
Posts: 60
Joined: Fri Sep 28, 2018 12:16 am

Re: identifying hybridization of a central atom

Postby Mona Lee 4L » Sat Dec 01, 2018 5:02 pm

Essentially, to determine if a molecule is polar, you must first look to see that the bonds are polar and that the molecule is asymmetrical. To tell if the bonds are polar, you look at the difference in electronegativity. On notable nonpolar bond is C-H. Then, look at the shape of the molecule and take note of any asymmetries caused by lone pairs.

Swetha Ampabathina1I
Posts: 64
Joined: Fri Sep 28, 2018 12:18 am

Re: identifying hybridization of a central atom

Postby Swetha Ampabathina1I » Sat Dec 01, 2018 5:24 pm

If the molecule is symmetrical, it is normally nonpolar. If it is asymmetrical its probably polar. Normally, lone pairs on the central atom can make the molecule polar.

005115864
Posts: 64
Joined: Fri Sep 28, 2018 12:15 am

Re: identifying hybridization of a central atom

Postby 005115864 » Sat Dec 01, 2018 5:43 pm

It also helps to think of the regions of electron distribution and whether one area is more localized with electrons. If the electron cloud is more localized, it is most definitely polar. If the electron cloud is evenly distributed, it is nonpolar.


Return to “Hybridization”

Who is online

Users browsing this forum: No registered users and 1 guest