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Polar Power

Posted: Tue Nov 27, 2018 11:28 pm
by Samantha Chang 2K
Can someone elaborate what polar power is? And why a high charge and a low volume affect it?

Re: Polar Power

Posted: Tue Nov 27, 2018 11:38 pm
by Germar G 4F
Polarizing power is basically an atom's ability to distort or effect an electron cloud around another atom. Ions have the highest polarizing power because they contain strong charges that have a high potential to distort other atoms. A smaller atomic radius means and a higher ion charge are usually characteristics of an atom with high polarizing power.

Re: Polar Power

Posted: Wed Nov 28, 2018 12:05 am
by Matthew Tran 1H
To be more specific, cations (positively charged ions) have high polarizing power. Anions would not have high polarizing power because they would not pull electron clouds as they are negatively charged. You typically refer to cations in terms of the polarizing power and anions in terms of their polarizability.

Re: Polar Power

Posted: Wed Nov 28, 2018 3:58 pm
by Samantha Chang 2K
Thank you!

Polar Power Compared to Atomic Radius

Posted: Wed Nov 28, 2018 4:00 pm
by charlotte_jacobs_4I
Is the polar power only determined by the atomic radius? For this would it be the smaller the radius the larger the polar power?

Re: Polar Power

Posted: Wed Nov 28, 2018 4:09 pm
by MichelleRamirez_2F
The atomic radii helps you understand why the polarizing power increases or decreases since the size of the radius correlates with how much power the nucleus has on the valence electrons.