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lewis structure

Posted: Wed Jun 13, 2018 8:58 pm
by megangeorge-1K
I'm drawing a blank, when drawing a lewis structure what determines which element goes in the middle?

Re: lewis structure

Posted: Wed Jun 13, 2018 9:29 pm
by Jared Pagal 1J
in drawing a lewis structure, typically the least electronegative atom is the central atom

Re: lewis structure

Posted: Wed Jun 13, 2018 9:43 pm
by megangeorge-1K
oh ok thank you!

Re: lewis structure

Posted: Wed Jun 13, 2018 9:46 pm
by melodyso1K
Also, the element in the middle is the one that has to make the most bonds!

Re: lewis structure

Posted: Wed Jun 13, 2018 9:47 pm
by melodyso1K
melodyso1K wrote:Also, the element in the middle is the one that has to make the most bonds!

This was said today during one of the review sessions ^^

Re: lewis structure

Posted: Thu Jun 14, 2018 6:10 pm
by Megan Phan 1K
The least electronegative, an one capable of making the most bond should be in the center.

Re: lewis structure

Posted: Thu Jun 14, 2018 7:30 pm
by Sollie1G
It is usually the most electronegative, C is one of the more common ones!!

Re: lewis structure

Posted: Mon Oct 29, 2018 3:12 pm
by Yixiao Hu 3C
you mean the central atom ? choose atom with lowest ionization energy as central atom

Re: lewis structure

Posted: Mon Oct 29, 2018 4:33 pm
by AlyssaBei_1F
The central atom is the atom in the middle. It is determined by the atom with the lowest ionization energy. Ionization energy increases up a group and increases across a period.

Re: lewis structure

Posted: Mon Oct 29, 2018 5:05 pm
by Cole Elsner 2J
Typically the atom with the lowest ionization energy ends up in the middle for lewis structure. Remember, ionization energy increases from going up and to the right of the periodic table.

Re: lewis structure

Posted: Mon Oct 29, 2018 5:27 pm
by Meachelle_Lum_1I
Some tips I find helpful:
- The atom with the lowest ionization energy ends up in the middle for lewis structure.
- Carbon always makes four bonds
Also, just remember that every element except H, He, Li, and Be follow the octet rule.