central atom

Moderators: Chem_Mod, Chem_Admin

danielruiz1G
Posts: 62
Joined: Fri Apr 06, 2018 11:04 am

central atom

Postby danielruiz1G » Sun May 20, 2018 11:28 pm

how exactly do you know which atom is the central atom when drawing Lewis structures?

Luis Avalos 1D
Posts: 30
Joined: Wed Nov 22, 2017 3:00 am

Re: central atom

Postby Luis Avalos 1D » Sun May 20, 2018 11:29 pm

It's generally the least electronegative element that's in the middle.

Jacy Black 1C
Posts: 30
Joined: Fri Apr 06, 2018 11:01 am

Re: central atom

Postby Jacy Black 1C » Sun May 20, 2018 11:38 pm

also, this can be tested by calculating formal charges and finding the lowest combination!

Yixiao Hu 3C
Posts: 45
Joined: Fri Sep 28, 2018 12:19 am

Re: central atom

Postby Yixiao Hu 3C » Mon Oct 29, 2018 3:11 pm

choose the atom with the lowest ionization energy as the central atom

Adam Vuilleumier 2K
Posts: 60
Joined: Fri Sep 28, 2018 12:27 am

Re: central atom

Postby Adam Vuilleumier 2K » Mon Oct 29, 2018 3:21 pm

An atom with a high electron affinity (low ionization energy) will usually be the central atom in a molecule. This is because it can easily form bonds with other atoms without using a lot of energy. Central atoms typically have the most bonds, so it makes sense that an atom that likes to form bonds would occupy this position.

AlyssaBei_1F
Posts: 99
Joined: Fri Sep 28, 2018 12:17 am

Re: central atom

Postby AlyssaBei_1F » Mon Oct 29, 2018 4:31 pm

The central atom is the atom with the least ionization energy. Hydrogen is never a central atom. Ionization energy increases up a group and increases across a period making Flourine (F) have the largest ionization energy.

Jayde Felix 4H
Posts: 59
Joined: Fri Sep 28, 2018 12:28 am

Re: central atom

Postby Jayde Felix 4H » Mon Oct 29, 2018 8:24 pm

It is the atom with the lowest ionization energy.

AlyssaBei_1F
Posts: 99
Joined: Fri Sep 28, 2018 12:17 am

Re: central atom

Postby AlyssaBei_1F » Sun Nov 04, 2018 5:43 pm

The central atom is most likely the atom with the lowest ionization energy


Return to “Lewis Structures”

Who is online

Users browsing this forum: No registered users and 1 guest