polarity

(Polar molecules, Non-polar molecules, etc.)

Moderators: Chem_Mod, Chem_Admin

Sophia Dinh 1D
Posts: 100
Joined: Thu Jul 25, 2019 12:15 am

polarity

Postby Sophia Dinh 1D » Sun Nov 17, 2019 9:09 pm

how can you tell if a bond is polar or non polar?

Myka G 1l
Posts: 100
Joined: Fri Aug 30, 2019 12:17 am

Re: polarity

Postby Myka G 1l » Sun Nov 17, 2019 9:12 pm

A bond is polar if its difference in electronegativity is between 0.4 and 2. If the electronegativity between the two molecules is less than 0.4 then the molecule is considered non polar. You can usually tell whether or not a bond is polar by seeing how far apart the two elements are on the periodic table.

Brianna Becerra 1B
Posts: 117
Joined: Fri Aug 02, 2019 12:16 am

Re: polarity

Postby Brianna Becerra 1B » Sun Nov 17, 2019 9:18 pm

In a covalent bond, the electrons are not equally shared causing there to be a negative charge in the atom with the closer e- pair and then the other atom having a positive charge induced by the negative charge. The bond is polar if the charges of the molecules to not cancel out (H20). A bond is nonpolar when the charges cancel each other out (BeCl2).

Fdonovan 3D
Posts: 101
Joined: Sat Aug 17, 2019 12:16 am

Re: polarity

Postby Fdonovan 3D » Sun Nov 17, 2019 9:31 pm

Polar bonds are usually between atoms with pretty different electronegativities (like H -- O), while nonpolar bonds are between atoms with similar electronegativities (like O--O or like C -- H).


Return to “Determining Molecular Shape (VSEPR)”

Who is online

Users browsing this forum: No registered users and 3 guests