Polarizing Power

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405289292
Posts: 52
Joined: Thu Oct 03, 2019 12:16 am

Polarizing Power

Postby 405289292 » Mon Nov 11, 2019 10:16 pm

Can someone define polarizability and polarizing power please? I am still slightly confused and want to be sure I have it down for the upcoming quiz/final.

Tiffany Dong_4e
Posts: 51
Joined: Wed Sep 11, 2019 12:17 am

Re: Polarizing Power

Postby Tiffany Dong_4e » Mon Nov 11, 2019 10:21 pm

A cation's ability to distort an anion's electron cloud is polarizing power. Polarizability is the tendency of a cation to be affected by an anion's polarizing power.

405289292
Posts: 52
Joined: Thu Oct 03, 2019 12:16 am

Re: Polarizing Power

Postby 405289292 » Mon Nov 11, 2019 10:28 pm

Tiffany Dong_4e wrote:A cation's ability to distort an anion's electron cloud is polarizing power. Polarizability is the tendency of a cation to be affected by an anion's polarizing power.

And so basically does this mean that a there is more covalent properties in the ionic bond?

Julie Park 1G
Posts: 100
Joined: Thu Jul 25, 2019 12:15 am

Re: Polarizing Power

Postby Julie Park 1G » Tue Nov 12, 2019 12:15 am

Yes, the textbook (2.D.2) says that when the distortion of the e- cloud on the anion increases, the covalent character of the bond also increases.

abby hyman
Posts: 52
Joined: Thu Jul 25, 2019 12:16 am

Re: Polarizing Power

Postby abby hyman » Tue Nov 12, 2019 9:19 am

Polarizability is how easily an electron cloud is distorted by an electric field. Polarizing power is a cations ability to attract valence electrons from a nearby anion in ionic compounds

sarahforman_Dis2I
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Joined: Sat Aug 17, 2019 12:18 am

Re: Polarizing Power

Postby sarahforman_Dis2I » Tue Nov 12, 2019 10:05 am

405289292 wrote:Can someone define polarizability and polarizing power please? I am still slightly confused and want to be sure I have it down for the upcoming quiz/final.


Polarizability is the ease at which electrons can be moved away from the nucleus whereas polarizing power is how easily a cation can pull electrons away from an anion. Polarizability increases (it becomes easier to pull electrons away) as the anionic radius increases. Polarizing power increases (increased pull of electrons) as cationic radius decreases.

Subashni Rajiv 1K
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Joined: Wed Sep 18, 2019 12:16 am

Re: Polarizing Power

Postby Subashni Rajiv 1K » Tue Nov 12, 2019 11:05 am

Small cations have a high polarizing power while large anions have high polarizability.


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