Polarizing Power (Trends)

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Chloe Alviz 1E
Posts: 102
Joined: Sat Aug 17, 2019 12:17 am

Polarizing Power (Trends)

Postby Chloe Alviz 1E » Wed Nov 06, 2019 11:30 am

What trends can we use to determine the polarizing power of an atom?

SGonzales_3L
Posts: 55
Joined: Thu Jul 11, 2019 12:17 am

Re: Polarizing Power (Trends)

Postby SGonzales_3L » Wed Nov 06, 2019 11:37 am

As anions get larger and larger, their polarizability increases. This is due to the decreasing effective nuclear charge on their valence electrons.

As charge increases on cations and as they get smaller, their polarizing power increases since they can get close to the nucleus of anions and exert a higher effective nuclear charge on the anion's electrons.

Brooke Yasuda 2J
Posts: 102
Joined: Sat Jul 20, 2019 12:17 am

Re: Polarizing Power (Trends)

Postby Brooke Yasuda 2J » Wed Nov 06, 2019 11:37 am

Polarizing power is related to positive nuclear charge of a cation. Generally, more polarizing power means that it has a smaller radius and therefore is holding onto its electrons very tightly. These atoms do not have a lot of electron shielding, so has a very strong positive charge.

Jocelyn Thorp 1A
Posts: 103
Joined: Wed Sep 18, 2019 12:20 am

Re: Polarizing Power (Trends)

Postby Jocelyn Thorp 1A » Wed Nov 06, 2019 4:38 pm

SGonzales_3L wrote:As anions get larger and larger, their polarizability increases. This is due to the decreasing effective nuclear charge on their valence electrons.

As charge increases on cations and as they get smaller, their polarizing power increases since they can get close to the nucleus of anions and exert a higher effective nuclear charge on the anion's electrons.


Thank you, this is the best explanation I've seen


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