Coordination Number

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Sofia Ban
Posts: 30
Joined: Fri Sep 28, 2018 12:25 am

Coordination Number

Postby Sofia Ban » Thu Nov 29, 2018 12:20 pm

What is the coordination number and how do you find it?

Jamie Hsu
Posts: 31
Joined: Fri Sep 28, 2018 12:19 am

Re: Coordination Number

Postby Jamie Hsu » Thu Nov 29, 2018 1:36 pm

I am not sure how to find the coordination number, however the coordination number is defined as the number of atoms or ions immediately surrounding a central atom in a complex.

Katelyn Phan 2A
Posts: 61
Joined: Fri Sep 28, 2018 12:23 am

Re: Coordination Number

Postby Katelyn Phan 2A » Thu Nov 29, 2018 1:44 pm

The coordination number of transition metals can be calculated by knowing the overall charges of the compound and the individual charges of non-metals in the compound. The charges of all atoms within the compound should add up to the overall charge of the compound.

John Kim Lec3Dis3L
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Joined: Fri Sep 28, 2018 12:17 am

Re: Coordination Number

Postby John Kim Lec3Dis3L » Thu Nov 29, 2018 1:58 pm

The coordination number is the number of ligands bonded to the central atoms. It seems that the coordination number can be found by just tallying the number of other atoms or other, smaller molecules within the complex's formula ( ex. coordination number 4 for [CoCl4]^(2-) or 2 for [HgCl2] ).

Usual geometric configurations for coordination numbers
* Coordination Number 2 - linear
* Coordination Number 3 - trigonal planar, trigonal pyramid, T-shaped
* Coordination Number 4 - tetrahedral, square planar
* Coordination Number 5 - trigonal bipyramidal
* Coordination Number 6 - trigonal prism, octahedral

harperlacroix1a
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Joined: Fri Sep 28, 2018 12:19 am

Re: Coordination Number

Postby harperlacroix1a » Fri Nov 30, 2018 2:19 pm

the coordination number is the number of atoms/ions that surround the central atom and you find it by calculating the charge

Abby De La Merced 3F
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Re: Coordination Number

Postby Abby De La Merced 3F » Fri Nov 30, 2018 7:54 pm

I remember the coordination number as the number of bonds to the central atom.

Hannah Padilla 1H
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Joined: Fri Sep 28, 2018 12:19 am

Re: Coordination Number

Postby Hannah Padilla 1H » Sun Dec 02, 2018 1:03 pm

The coordination number is how many atoms/ligand are bonded to the central compound.

Rami_Z_AbuQubo_2K
Posts: 89
Joined: Thu Jun 07, 2018 3:00 am

Re: Coordination Number

Postby Rami_Z_AbuQubo_2K » Sun Dec 02, 2018 2:18 pm

So coordination number corresponds to the areas bonded to the center of a ligand similar to the electron geometry structures?

Niveda_B_3I
Posts: 60
Joined: Fri Sep 28, 2018 12:24 am

Re: Coordination Number

Postby Niveda_B_3I » Sun Dec 02, 2018 2:43 pm

Coordination number is basically the number of bonded atoms to the central atom.

Gillian Ward 1F
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Re: Coordination Number

Postby Gillian Ward 1F » Sun Dec 02, 2018 4:44 pm

Coordination number corresponds to the number of bonded atoms around the central atom

Daniela Alvarado 3B
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Joined: Fri Sep 28, 2018 12:26 am

Re: Coordination Number

Postby Daniela Alvarado 3B » Sun Dec 02, 2018 4:50 pm

Earlier today someone some one told me that the coordination number was the number of DIFFERENT bonds which threw me off. But what I'm seeing here is that when we have 3 of the SAME atoms bound to a central atom, the coordination # is still 3, right?


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