Polarizability vs. Polarizing Power

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Sara Sadrolsadat 1G
Posts: 39
Joined: Fri Sep 28, 2018 12:16 am

Polarizability vs. Polarizing Power

Postby Sara Sadrolsadat 1G » Thu Nov 08, 2018 8:15 pm

What's the difference between polarizability and polarizing power? Are they always associated with each other, or can one exist independently of another in an interaction? (ex. cations and anions)

Alyssa Wilson 2A
Posts: 65
Joined: Fri Sep 28, 2018 12:18 am

Re: Polarizability vs. Polarizing Power

Postby Alyssa Wilson 2A » Thu Nov 08, 2018 8:24 pm

The ability of a cation to distort an anion is known as its polarizing power. The tendency of the anion to become polarized by the cation is known as its polarizability. I believe they are always associated with one another and they go hand in hand.

Xinyi Zeng 4C
Posts: 63
Joined: Fri Sep 28, 2018 12:18 am

Re: Polarizability vs. Polarizing Power

Postby Xinyi Zeng 4C » Thu Nov 08, 2018 8:47 pm

Yes, and just to add on, for anions, if they have a larger electron cloud while the electrons are further away from the nuclear, they are more easily drawn away by a cation of high polarizing power, and they are more easily polarized. It is during the process of polarization that a highly polarizing cation could distort the electron cloud of a highly polarizable anion, so I think polarizability and polarizing power are relevant to each other as you have to look at each case.


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