Periodic Trends

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Periodic Trends

Postby salvadorramos3k » Thu Nov 21, 2019 4:29 am

What are the periodic trends for polarizability and polarizing power?

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Re: Periodic Trends

Postby Veronica_Lubera_2A » Thu Nov 21, 2019 9:06 am

Cations have polarizing power while anions have polarizability. The definition of polarizability is the ability to distort electron clouds. For cations, those that are smaller and highly charged are the most polarizable. For anions, those that are bigger and less charged are the most polarizable.

In the periodic table, the column that would have the most polarizability is group 17 (right before the noble gases) since they want to gain an electron to become the most stable.

Justin Sarquiz 2F
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Re: Periodic Trends

Postby Justin Sarquiz 2F » Thu Nov 21, 2019 9:33 am

The atom with larger polarizability will have the stronger LDF force. In other words, the larger the atom, the stronger the LDF. We can use this information to determine, which molecules have a higher melting point.

Daniel Toscano 1L
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Re: Periodic Trends

Postby Daniel Toscano 1L » Thu Nov 21, 2019 10:24 am

Polarizing power increases going up and to the right on the periodic table
Polarizability increases going down and to the left on the periodic table

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Re: Periodic Trends

Postby AnayaArnold_3L » Tue Dec 03, 2019 10:58 am

Do the periodic table trends have any effect on the boiling point?

Subashni Rajiv 1K
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Re: Periodic Trends

Postby Subashni Rajiv 1K » Tue Dec 03, 2019 11:15 am

The melting and boiling points rise across the three metals because of the increasing strength of their metallic bonds.

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Re: Periodic Trends

Postby 605208780 » Tue Dec 03, 2019 11:20 am

Polarizability increases down a group because atomic size increases and larger electron clouds distort more easily. Polarizability decreases across a period because of increasing nuclear charge

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Re: Periodic Trends

Postby Ayushi2011 » Fri Dec 06, 2019 3:41 pm

smaller cations with less electron cloud have higher polarising power whereas larger anions with a large electron cloud and distortion have more polarizability.

Joowon Seo 3A
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Re: Periodic Trends

Postby Joowon Seo 3A » Sat Dec 07, 2019 4:30 pm

polarizability depends on size of an atom, because the electron cloud can distort more easily. polarizing power: the smaller the cation, the more powerful it is.

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