Lewis Structures

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505095793
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Joined: Fri Sep 28, 2018 12:25 am

Lewis Structures

Postby 505095793 » Sun Nov 04, 2018 12:01 pm

How do we know which atom to put in the center of a Lewis structure?

Sophia_Kiessling_2L
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Joined: Fri Sep 28, 2018 12:26 am

Re: Lewis Structures

Postby Sophia_Kiessling_2L » Sun Nov 04, 2018 12:07 pm

It is the atom with the lowest ionization energy in the middle

Hedi Zappacosta 1E
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Joined: Fri Sep 28, 2018 12:27 am

Re: Lewis Structures

Postby Hedi Zappacosta 1E » Sun Nov 04, 2018 12:07 pm

It is whichever atom is the least electronegative or has the lowest ionization energy.

angelagd3l
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Re: Lewis Structures

Postby angelagd3l » Sun Nov 04, 2018 12:30 pm

normally you put the atom with the lowest ionization energy

Alexandra Albers 1D
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Joined: Fri Sep 28, 2018 12:18 am

Re: Lewis Structures

Postby Alexandra Albers 1D » Sun Nov 04, 2018 12:49 pm

It is usually the atom with the lowest ionization energy. Although if you are given the molecule, you may be able to figure out which atom is the central one based on if there is one type of atom and four of another type of atom for example, or a similar type of molecule.

Alexa_Henrie_1I
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Joined: Fri Sep 29, 2017 7:03 am

Re: Lewis Structures

Postby Alexa_Henrie_1I » Sun Nov 04, 2018 2:59 pm

If there are only two atoms in a molecule, does it matter where the atom with the non-lowest ionization atom is put? Like does it matter if it is put to the left or right of the central atom?

Andrewwiner4D
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Re: Lewis Structures

Postby Andrewwiner4D » Sun Nov 04, 2018 3:06 pm

No^ because in nature the molecule can literally just turn and the elements would switch whether they are on the right or the left.

Abhi4F
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Joined: Fri Sep 28, 2018 12:28 am

Re: Lewis Structures

Postby Abhi4F » Sun Nov 04, 2018 6:46 pm

The atom with the lowest ionization energy is the central atom.

Soyoung Park 1H
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Re: Lewis Structures

Postby Soyoung Park 1H » Mon Nov 05, 2018 12:50 am

When do you use brackets around the lewis structures?

kimberlyrose1G
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Joined: Fri Sep 28, 2018 12:27 am

Re: Lewis Structures

Postby kimberlyrose1G » Mon Nov 05, 2018 6:30 am

Soyoung Park 1H wrote:When do you use brackets around the lewis structures?

Once you have completed the Lewis structure and know the charge is when you put brackets and the charge in the top right corner on the outside of the brackets

kimberlyrose1G
Posts: 44
Joined: Fri Sep 28, 2018 12:27 am

Re: Lewis Structures

Postby kimberlyrose1G » Mon Nov 05, 2018 6:31 am

505095793 wrote:How do we know which atom to put in the center of a Lewis structure?

It's the atom with the lowest ionization energy, and if there's multiple of the other atoms in the compound, it'll be the atom that there is one of.

kimberlyrose1G
Posts: 44
Joined: Fri Sep 28, 2018 12:27 am

Re: Lewis Structures

Postby kimberlyrose1G » Mon Nov 05, 2018 6:32 am

kimberlyrose4D wrote:
505095793 wrote:How do we know which atom to put in the center of a Lewis structure?

It's the atom with the lowest ionization energy, and if there's multiple of the other atoms in the compound, it'll be the atom that there is one of.

Also: Hydrogen can never be the center atom


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