Electronegativity on Test

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Qilan Li 4I
Posts: 54
Joined: Mon Jun 17, 2019 7:23 am

Electronegativity on Test

Postby Qilan Li 4I » Fri Nov 01, 2019 10:38 am

Do we need to know how to calculate the exact number for electronegativity for the midterm and all the tests afterward? If not, is there anything else to know about electronegativity besides the general trends and information?

romina_4C
Posts: 100
Joined: Thu Jul 11, 2019 12:17 am

Re: Electronegativity on Test

Postby romina_4C » Fri Nov 01, 2019 10:40 am

I think you might need to know if a bond is going to be ionic or covalent based on the electronegativities (above 2 = ionic, below 1.5 = covalent) along with the trends in electronegativity. But since we haven't really done ay problems calculating exact electronegativities yet, I doubt that'll be on the midterm!

ranqiao1e
Posts: 51
Joined: Sat Sep 14, 2019 12:15 am

Re: Electronegativity on Test

Postby ranqiao1e » Fri Nov 01, 2019 11:10 am

We don’t need to calculate the electronegtivity but we do need to know the electronegativity of atoms relative to each other.

Sartaj Bal 1J
Posts: 101
Joined: Thu Jul 25, 2019 12:17 am

Re: Electronegativity on Test

Postby Sartaj Bal 1J » Fri Nov 01, 2019 11:48 am

I believe we will not receive a period table that lists all the electronegativity of each element. However, it is best to know the relative trends to solve a variety of problems like creating a Lewis structure with the lowest energy arrangement of atoms and electrons.

Eunice Nguyen 4I
Posts: 100
Joined: Sat Aug 17, 2019 12:17 am

Re: Electronegativity on Test

Postby Eunice Nguyen 4I » Fri Nov 01, 2019 12:14 pm

Because we haven't gone over it, I doubt that we'll need to be able to calculate the exact number. However, you should know the trends from the periodic table.

Junxi Feng 3B
Posts: 52
Joined: Sat Sep 14, 2019 12:17 am

Re: Electronegativity on Test

Postby Junxi Feng 3B » Fri Nov 01, 2019 12:41 pm

We will not need to know how to calculate the electronegativity, but we need to know the trend of it in the periodic table. And we need to compare the relative electronegativity between different atoms.

Merin Padayatty 3G
Posts: 52
Joined: Thu Jul 11, 2019 12:16 am

Re: Electronegativity on Test

Postby Merin Padayatty 3G » Sat Nov 02, 2019 10:29 am

How should we take account of electronegativity when drawing Lewis structures?

Joowon Seo 3A
Posts: 100
Joined: Sat Aug 24, 2019 12:17 am

Re: Electronegativity on Test

Postby Joowon Seo 3A » Sat Nov 02, 2019 1:09 pm

I think you need to know the trend of electronegativity where it is opposite to the size of an atom (where it increases across a period and up a group)


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