Page 1 of 1

Lewis Structures

Posted: Sun Nov 04, 2018 12:01 pm
by 505095793
How do we know which atom to put in the center of a Lewis structure?

Re: Lewis Structures

Posted: Sun Nov 04, 2018 12:07 pm
by Sophia_Kiessling_2L
It is the atom with the lowest ionization energy in the middle

Re: Lewis Structures

Posted: Sun Nov 04, 2018 12:07 pm
by Hedi Zappacosta 1E
It is whichever atom is the least electronegative or has the lowest ionization energy.

Re: Lewis Structures

Posted: Sun Nov 04, 2018 12:30 pm
by angelagd3l
normally you put the atom with the lowest ionization energy

Re: Lewis Structures

Posted: Sun Nov 04, 2018 12:49 pm
by Alexandra Albers 1D
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.

Re: Lewis Structures

Posted: Sun Nov 04, 2018 2:59 pm
by Alexa_Henrie_1I
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?

Re: Lewis Structures

Posted: Sun Nov 04, 2018 3:06 pm
by Andrewwiner4D
No^ because in nature the molecule can literally just turn and the elements would switch whether they are on the right or the left.

Re: Lewis Structures

Posted: Sun Nov 04, 2018 6:46 pm
by Abhi4F
The atom with the lowest ionization energy is the central atom.

Re: Lewis Structures

Posted: Mon Nov 05, 2018 12:50 am
by Soyoung Park 1H
When do you use brackets around the lewis structures?

Re: Lewis Structures

Posted: Mon Nov 05, 2018 6:30 am
by kimberlyrose1G
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

Re: Lewis Structures

Posted: Mon Nov 05, 2018 6:31 am
by kimberlyrose1G
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.

Re: Lewis Structures

Posted: Mon Nov 05, 2018 6:32 am
by kimberlyrose1G
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