Polarizability

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Elyssa Smith 4B
Posts: 58
Joined: Wed Sep 18, 2019 12:22 am

Polarizability

Postby Elyssa Smith 4B » Thu Nov 07, 2019 6:45 pm

Does polarizability follow the same trend as atomic size? Are there any exceptions? Why do they follow the same trend?

BNgo_2L
Posts: 95
Joined: Wed Sep 11, 2019 12:17 am

Re: Polarizability

Postby BNgo_2L » Thu Nov 07, 2019 6:55 pm

Polarizability increases as the size of the anion increases. The larger electrons cloud, the more susceptible it can be distorted since the electrostatic attraction of the outer electrons being reduced.

Daniel Martinez 1k
Posts: 50
Joined: Wed Sep 18, 2019 12:16 am

Re: Polarizability

Postby Daniel Martinez 1k » Thu Nov 07, 2019 6:59 pm

Polarizability increases as the charge and the size of the anion increases.

Sanjana Munagala_1j
Posts: 103
Joined: Sat Aug 24, 2019 12:17 am
Been upvoted: 1 time

Re: Polarizability

Postby Sanjana Munagala_1j » Fri Nov 08, 2019 10:51 am

Yes polarizabilty does increase with atomic radius and charge, but it also increases with atoms that have lower electronegativity, which means the outer electrons feel less of a pull from the nucleus and thus are more likely to get distorted and form covalent bonds with cations.

Hope this helps!

405335722
Posts: 56
Joined: Fri Aug 30, 2019 12:16 am

Re: Polarizability

Postby 405335722 » Fri Nov 08, 2019 10:58 am

Yes! You are correct. Polarizability increases as molecular mass increases because, as molar mass increases so does the number of electrons in an atom. The more electrons there are, the more polarizability an atom has.

Simon Dionson 4I
Posts: 107
Joined: Sat Sep 14, 2019 12:17 am

Re: Polarizability

Postby Simon Dionson 4I » Fri Nov 08, 2019 6:00 pm

Polarizability increases with the size of the electron and how many electrons it has. For example, Iodine has high polarizability because it is a big atom with many electrons compared to something like sodium.

Kaitlyn Jang 1F
Posts: 45
Joined: Sat Aug 17, 2019 12:16 am

Re: Polarizability

Postby Kaitlyn Jang 1F » Sat Nov 09, 2019 10:06 am

Polarizability is the ability of an atom to form instantaneous dipoles. Thus, when an atom has a bigger atomic radius, it's polarizability increases because there are more electrons and the electrons are more dispersed.


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