polarizability/polarizing power and periodicity

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polarizability/polarizing power and periodicity

Postby ayushibanerjee06 » Tue Nov 05, 2019 10:00 pm

does polarizability and polarizing power relate to electronegativity and electron affinity? like do ions with high polarizability have a higher electron affinity and atomic radius? and do ions with a strong polarizing power have a low electron affinity, electronegativity, and small atomic radius?

Sebastian Lee 1L
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Re: polarizability/polarizing power and periodicity

Postby Sebastian Lee 1L » Tue Nov 05, 2019 10:09 pm

I believe all these concepts are related. An anion will be more polarizable if it has a larger ionic radius and thus has a lower ionization energy/lower electron affinity. The effective nuclear charge is lower so the electrons are held less tightly and the electron cloud is more easily distorted to the cation. Conversely, a highly polarizing cation will have a smaller ionic radius and thus a higher electronegativity and electron affinity. It will want to draw the electrons from the anion in more, thus the high polarizing power.

Alison Trinh 1E
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Re: polarizability/polarizing power and periodicity

Postby Alison Trinh 1E » Fri Nov 08, 2019 2:32 pm

What is the difference between polarizability and polarizing power?

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