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Polarizability

Posted: Sun May 20, 2018 2:46 pm
by JoeyAnn Mateo 1D
Can someone please explain to me the general trend of polarization?

Re: Polarizability

Posted: Sun May 20, 2018 2:47 pm
by nicolesalcedo
Generally, larger molecules are more polarizable than smaller molecules.

Re: Polarizability

Posted: Sun May 20, 2018 2:48 pm
by JoeyAnn Mateo 1D
Is this trend the same for cations?

Re: Polarizability

Posted: Sun May 20, 2018 2:49 pm
by nicolesalcedo
Smaller, more highly-charged cations have greater polarization power. In terms of ionic radius, polarization increases from big to small atoms. You can refer to question 3.81.

Re: Polarizability

Posted: Sun May 20, 2018 2:49 pm
by JoeyAnn Mateo 1D
Do anions follow the same trend or is there variability?

Re: Polarizability

Posted: Sun May 20, 2018 2:50 pm
by nicolesalcedo
Anions are opposite from anions; polarizability increases as ions get larger and less electronegative.

Re: Polarizability

Posted: Sun May 20, 2018 2:52 pm
by JoeyAnn Mateo 1D
So generally, just to make sure.
Cations increase in polarizability as atomic radius decreases.
Anions increase in polarizability as atomic radius increases ( and less electronegative).

Normal atoms follow same rule as cations ( same trend as radius size)

Re: Polarizability

Posted: Sun May 20, 2018 2:53 pm
by nicolesalcedo
Yes, exactly :)