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Postby 505316964 » Sat Nov 09, 2019 8:50 pm

Why are large anions highly polarizable?

Deepika Reddy 1A
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Joined: Thu Jul 11, 2019 12:15 am

Re: Polarizability

Postby Deepika Reddy 1A » Sat Nov 09, 2019 8:54 pm

If something is highly polarizable, that means that its electrons are more easily distorted. Large anions are larger atoms because extra electrons are added to the atom causing electron-electron repulsion, causing the atom to be bigger. This causes the electrons to be farther away from the positively charged nucleus. The outer electrons are therefore not as tightly held by the atom and are more easily distorted. Therefore, the larger the atom, the more polarizable it is.

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Re: Polarizability

Postby WYacob_2C » Sat Nov 09, 2019 9:26 pm

Large anions are more polarizable because their electron cloud is larger and their nuclear charge is smaller, allowing the outermost electrons to get distorted easier. Larger atoms are more polarizable.

Pablo 1K
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Re: Polarizability

Postby Pablo 1K » Sat Nov 09, 2019 9:47 pm

Outer electrons are easily distorted in anions. There is a small nuclear charge which means these electrons are held less tightly. Thus why anions are highly polarizable.

Celine 1F
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Re: Polarizability

Postby Celine 1F » Sun Nov 10, 2019 12:20 am

large ions are highly polarizable because as electron distance from the nucleus increases, the valence electrons feel a reduced attraction to the nucleus and are easily attracted to nuclei of other molecules.

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