Figuring out the Lewis Structure

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AryaG_4C
Posts: 50
Joined: Mon Sep 30, 2019 12:16 am

Figuring out the Lewis Structure

Postby AryaG_4C » Sun Nov 03, 2019 7:22 pm

I am not entirely sure if its just associated to this topic but how exactly are we supposed to know that in a compound for eg NH4Cl we have to dissociate NH4 and Cl as its a salt and then draw the specific Lewis Structures? Basically when do we know it's not a covalent i.e sharing of electrons between the elements?

Milisuryani Santoso 1L
Posts: 44
Joined: Thu Jul 11, 2019 12:15 am

Re: Figuring out the Lewis Structure

Postby Milisuryani Santoso 1L » Sun Nov 03, 2019 7:29 pm

For me, I think it's easier just to have a grasp of the most common polyatomic ions and look out for those in the chemical formulas given to you. If there is an ion in it, then it forms an ionic bond and if none, it's covalent.

Varadhan_3G
Posts: 49
Joined: Wed Sep 18, 2019 12:20 am

Re: Figuring out the Lewis Structure

Postby Varadhan_3G » Sun Nov 03, 2019 7:38 pm

Also for salts (like NH4Cl), we can assume their complete dissociation! :)

Jessica Chen 2C
Posts: 103
Joined: Thu Jul 11, 2019 12:17 am

Re: Figuring out the Lewis Structure

Postby Jessica Chen 2C » Sun Nov 03, 2019 11:17 pm

Covalent bonds are typically between two nonmetals (right side of periodic table), while ionic bonds are between a metal and a nonmetal, so be sure to keep that in mind too!


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