Polarizability and States

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Zoya Mulji 1K
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Joined: Thu Jul 11, 2019 12:15 am

Polarizability and States

Postby Zoya Mulji 1K » Fri Nov 08, 2019 1:57 pm

What is the relationship between polarizability and the states of atoms/molecules?

Posts: 55
Joined: Fri Sep 20, 2019 12:17 am

Re: Polarizability and States

Postby kpang_4H » Fri Nov 08, 2019 2:03 pm

I dont think there is a relationship, I think larger atoms are generally more polarizable.

Aadil Rehan 1D
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Re: Polarizability and States

Postby Aadil Rehan 1D » Fri Nov 08, 2019 7:02 pm

I think gaseous atoms are the most polarizable, simply based on the fact that atoms and their electrons are most mobile in the gas state.

Ashley Fang 2G
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Joined: Fri Aug 30, 2019 12:17 am

Re: Polarizability and States

Postby Ashley Fang 2G » Mon Nov 11, 2019 5:24 pm

The greater the molecular mass, the greater the electron cloud distortion and polarizability. London dispersion forces tend to be stronger between molecules that are easily polarized. Thus, with a higher intermolecular force, the melting point/boiling point will also tend to be higher because more energy is needed to phase change, so it'll be more likely that the element will be in a solid or liquid state than say a gaseous state with a higher MP/BP.

An example would be Bromine, which is a liquid, while Iodine (a row below Bromine) is a solid due to its greater molecular mass, greater atomic radii, greater polarizability, and also higher MP.

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