Formal Charge on Central Atom


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marcus lin 1E
Posts: 54
Joined: Fri Sep 28, 2018 12:28 am

Formal Charge on Central Atom

Postby marcus lin 1E » Sun Nov 04, 2018 8:19 pm

Why does the formal charge on the central atom have to be as close to 0 as possible?

Hovik Mike Mkryan 2I
Posts: 95
Joined: Fri Sep 28, 2018 12:25 am

Re: Formal Charge on Central Atom

Postby Hovik Mike Mkryan 2I » Sun Nov 04, 2018 8:21 pm

Having the resonance structure with formal charges closest to 0 (especially central atom) makes it the the structure with highest contribution. The f(c)=0 makes the molecule the most likely to react.

Alma Carrera 3C
Posts: 33
Joined: Fri Apr 06, 2018 11:02 am

Re: Formal Charge on Central Atom

Postby Alma Carrera 3C » Sun Nov 04, 2018 8:39 pm

The structure will be more stable if the central atom has a formal charge of 0, which is why we always to give the central atom a formal charge of 0.

Ivan Tadeja 4B
Posts: 31
Joined: Fri Sep 28, 2018 12:28 am

Re: Formal Charge on Central Atom

Postby Ivan Tadeja 4B » Sun Nov 04, 2018 8:51 pm

Formal charge is utilized in order to predict reactivity with the closer the charge being to 0, the more stable it becomes.

WilliamNguyen_4L
Posts: 65
Joined: Fri Sep 28, 2018 12:28 am

Re: Formal Charge on Central Atom

Postby WilliamNguyen_4L » Sun Nov 04, 2018 9:04 pm

The center atom is the element with the lowest ionization energy so it would make sense for it to not have the negative charge. Since the atoms surrounding the center atom have higher ionization energy and electron affinity, they are more likely to carry the negative partial charge.

Liset Rivera 3A
Posts: 31
Joined: Fri Sep 28, 2018 12:23 am

Re: Formal Charge on Central Atom

Postby Liset Rivera 3A » Sun Nov 04, 2018 10:17 pm

To make it more stable.

taryn_baldus2E
Posts: 62
Joined: Fri Sep 28, 2018 12:24 am

Re: Formal Charge on Central Atom

Postby taryn_baldus2E » Sun Nov 04, 2018 10:19 pm

Any sort of charge on the central atom will cause the molecule to be less stable, meaning that it is not the best possible structure. For this reason, it is better to find another better structure that has the charge on one of the other atoms.

Maxwell S 3E
Posts: 15
Joined: Fri Sep 28, 2018 12:24 am

Re: Formal Charge on Central Atom

Postby Maxwell S 3E » Sun Nov 04, 2018 10:49 pm

At what point can the instability reach a limit of explosion or some sort of effect? Is this too complicated of the question?

Luis_Yepez_1F
Posts: 50
Joined: Fri Sep 28, 2018 12:18 am

Re: Formal Charge on Central Atom

Postby Luis_Yepez_1F » Sun Nov 04, 2018 10:52 pm

As the central atom's FC becomes zero, the more stable the entirety of the molecule becomes.

405021651
Posts: 46
Joined: Tue Nov 14, 2017 3:03 am

Re: Formal Charge on Central Atom

Postby 405021651 » Sun Nov 04, 2018 10:53 pm

I believe that all of the charges on the atoms (not just the central atom) should be 0


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