Drawing Lewis Structures

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MaryBanh_2K
Posts: 101
Joined: Wed Sep 18, 2019 12:21 am

Drawing Lewis Structures

Postby MaryBanh_2K » Fri Nov 22, 2019 10:23 am

If we are given a molecule with multiple carbons like C5H5N, will the lewis structure will always be in the form of a ring of carbons (and one N)? Also, do we refer to the central atoms as the carbon or is there no central atom?

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

Re: Drawing Lewis Structures

Postby Sartaj Bal 1J » Fri Nov 22, 2019 11:21 am

If we are given a molecule with multiple carbons, the structure will not always be in the form of a ring. For example, C4H10 forms a hydrocarbon chain with all the carbon atoms in the center covalently bonded to each other and the hydrogens at the terminal ends. There is no direct central atom because all the carbons are equally distributed across the molecule.

405335722
Posts: 56
Joined: Fri Aug 30, 2019 12:16 am

Re: Drawing Lewis Structures

Postby 405335722 » Fri Nov 22, 2019 11:25 am

usually when given huge molecules like that the atoms are arranged in order of which they are writtem.

For example given CH2CHCN,

the order of the "backbone" of the lewis strucrure would be C-C-C-N and then add in the hydrogens

Dan M -3E
Posts: 101
Joined: Wed Sep 18, 2019 12:19 am

Re: Drawing Lewis Structures

Postby Dan M -3E » Sun Nov 24, 2019 8:14 pm

I think that we might have to test the formal charges of the differently drawn lewis structures to find our wether its a chain or a ring, but hopefully we won't be given one of those, or there will be parts in parenthesis so that we can tell.

Kaitlynn Tran 3F
Posts: 54
Joined: Wed Sep 18, 2019 12:20 am

Re: Drawing Lewis Structures

Postby Kaitlynn Tran 3F » Thu Dec 05, 2019 11:45 pm

Sartaj Bal 3H wrote:If we are given a molecule with multiple carbons, the structure will not always be in the form of a ring. For example, C4H10 forms a hydrocarbon chain with all the carbon atoms in the center covalently bonded to each other and the hydrogens at the terminal ends. There is no direct central atom because all the carbons are equally distributed across the molecule.


How would we be able to tell the difference between the molecular formula's structure being a ring or a chain?


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