## Coordination Number

Alexis Robles 2k
Posts: 100
Joined: Wed Sep 18, 2019 12:18 am

### Coordination Number

The coordination number of central atom is the total number of ligands bonded to it correct?

Lara Kristine Bacasen 1L
Posts: 110
Joined: Sat Jul 20, 2019 12:16 am
Been upvoted: 1 time

### Re: Coordination Number

It's the number of points at which ligands are attached to the central atom. Remember some ligands can connect to the central atom twice (polydentate) so it's not exactly the number of ligands.

Jessica Tejero 3L
Posts: 54
Joined: Wed Sep 25, 2019 12:16 am

### Re: Coordination Number

The value depends on the relative sizes of the central atom and ligands and by the charge from the electronic configuration of an ion. The coordination number of an atom in a molecule or polyatomic ion is found by counting the number of atoms bound to it

Pablo 1K
Posts: 118
Joined: Sat Feb 02, 2019 12:15 am

### Re: Coordination Number

It is to the total n umber of atoms bound to it not necessarily ligands since some can bind at multiple sites.

Grecia Velasco 4D
Posts: 56
Joined: Thu Jul 11, 2019 12:17 am

### Re: Coordination Number

Lara Kristine Bacasen 3B wrote:It's the number of points at which ligands are attached to the central atom. Remember some ligands can connect to the central atom twice (polydentate) so it's not exactly the number of ligands.

Do the bi/tri/polydentate is how many times a single ligand can bind to a central transitional metal? Thank you!

ariaterango_1A
Posts: 57
Joined: Wed Sep 18, 2019 12:15 am

### Re: Coordination Number

Yes the coordination number is determined by the # of atoms bonded directly to the central atom. If an atom is polydentate, take that into account when calculating this number. For instance if a bond is bidentate make sure to multiply that bond by 2 when calculating the coordination number.

Aprice_1J
Posts: 55
Joined: Wed Sep 18, 2019 12:16 am

### Re: Coordination Number

Is the coordination number the same thing as the oxidation number?

Elizabeth Harty 1A
Posts: 125
Joined: Sat Jul 20, 2019 12:16 am

### Re: Coordination Number

Coordination # and oxidation # aren't necessarily the same.
Attachments

Jorge Ramirez_4H
Posts: 54
Joined: Wed Nov 21, 2018 12:19 am

### Re: Coordination Number

Is there an easy way of calculating oxidation numbers?

105289321
Posts: 49
Joined: Sat Sep 07, 2019 12:15 am

### Re: Coordination Number

It is just the amount of number of ligands attached to the central atom

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