Polarizability

Moderators: Chem_Mod, Chem_Admin

Vikramjeet Gill 1C
Posts: 30
Joined: Fri Sep 28, 2018 12:15 am

Polarizability

Postby Vikramjeet Gill 1C » Sat Nov 10, 2018 4:14 pm

Can someone explain the difference between polarizability and polarizing power to me, and what characteristics do you look for when you want to determine what elements have the highest polarizability or polarizing power. I am having a hard time grasping the concepts.

mahika_nayak_3L
Posts: 60
Joined: Fri Sep 28, 2018 12:26 am

Re: Polarizability

Postby mahika_nayak_3L » Sat Nov 10, 2018 4:19 pm

Polarizability is a measure of how easily the electrons can be distorted around an atom, thus creating a dipole. This depends on the number of electrons that an atom has and the size of the molecule (ex. I2 is a bigger molecule than H2 and has more electrons, is more polarizable). Polarizing power refers to the ability of a cation to distort the electrons of an anion.

Sean Reyes 1J
Posts: 67
Joined: Fri Sep 28, 2018 12:24 am

Re: Polarizability

Postby Sean Reyes 1J » Sat Nov 10, 2018 4:25 pm

Polarizability tends to deal with the anion, while polarizing power deals with the cation.
The more polarizable an anion is, the more easily the electron cloud around it can be distorted.
The higher the polarizing power, the easier it is for the cation to distort an anion's electron cloud.

Bianca Barcelo 4I
Posts: 74
Joined: Fri Sep 28, 2018 12:17 am
Been upvoted: 1 time

Re: Polarizability

Postby Bianca Barcelo 4I » Sun Nov 11, 2018 1:46 pm

Is there a trend based on the size of an atom that correlates to its polarizability/polarizing power?

905096106
Posts: 30
Joined: Fri Oct 05, 2018 12:17 am

Re: Polarizability

Postby 905096106 » Sun Nov 11, 2018 1:56 pm

smaller anions have more polarizability. As atoms get bigger in size, they have more polarizing power.


Return to “Ionic & Covalent Bonds”

Who is online

Users browsing this forum: No registered users and 2 guests