Oxidation Number vs. Coordination Number

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Rachel Yu 1G
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Joined: Fri Aug 09, 2019 12:15 am

Oxidation Number vs. Coordination Number

Postby Rachel Yu 1G » Tue Nov 26, 2019 2:18 pm

What is the difference between oxidation numbers and coordination numbers?

Alexa Mugol 3I
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Joined: Sat Aug 17, 2019 12:17 am

Re: Oxidation Number vs. Coordination Number

Postby Alexa Mugol 3I » Tue Nov 26, 2019 2:24 pm

Oxidation number is the charge of the transition metal in the center of the coordination compound. Coordination number is the number of bonds from the central metal atom.

Sanjana K - 2F
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Re: Oxidation Number vs. Coordination Number

Postby Sanjana K - 2F » Tue Nov 26, 2019 2:51 pm

Here's an example of a problem involving coordination numbers:
In Co(NH3)6, the coordination number is 6 because you have 6 ligands attached to the central atom Co. CO3 (2-) has a coordination number of 3 because of the 3 oxygens surrounding the carbon atom. You can relate coordination numbers to molecular geometry.

Here's an example of a problem involving oxidation numbers:
If you want to find the oxidation number for Cr in CrCl3, you have to start off by figuring out the charges you DO know (the charges of the non-TM ions). Group 17 elements have an oxidation number of -1 so 3(-1) = -3. The charge of the overall molecule is 0 and we only have one Cr atom, so the charge of the Cr atom is +3 to make the molecule neutral in charge.

905416023
Posts: 54
Joined: Thu Jul 25, 2019 12:17 am

Re: Oxidation Number vs. Coordination Number

Postby 905416023 » Tue Nov 26, 2019 2:52 pm

I am also extremely confused on this. Is this something we are going to have to know for the final?

DMuth_1J
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Re: Oxidation Number vs. Coordination Number

Postby DMuth_1J » Tue Nov 26, 2019 3:19 pm

if coordination number is the number of bonds, then what is valence?

Michelle Song 1I
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Re: Oxidation Number vs. Coordination Number

Postby Michelle Song 1I » Tue Nov 26, 2019 4:15 pm

DMuth_1J wrote:if coordination number is the number of bonds, then what is valence?


Valence is the number of electrons an atom/ion has in their outer shell

Jack Riley 4f
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Re: Oxidation Number vs. Coordination Number

Postby Jack Riley 4f » Tue Nov 26, 2019 4:16 pm

oxidation number is the charge of the central transition metal ion. Coordination number is the number of bonds the central ion forms in the compound

Brittany Tran 3I
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Re: Oxidation Number vs. Coordination Number

Postby Brittany Tran 3I » Tue Nov 26, 2019 8:51 pm

oxidation number is the charge on the ion. coordination number is the number of covalent bonds connecting the central ion to the ligands in a coordination compound

Angela Patel 2J
Posts: 110
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Re: Oxidation Number vs. Coordination Number

Postby Angela Patel 2J » Wed Nov 27, 2019 9:15 am

why is it called oxidation number if it is just the charge on the ion/transition metal?


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