Number of Ligands?

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Lily Mohtashami
Posts: 151
Joined: Wed Sep 30, 2020 9:34 pm

Number of Ligands?

Postby Lily Mohtashami » Wed Nov 25, 2020 10:58 am

How do you know how many bonds transition metals, for example Nickel, need. Does it need to have an octet because in the example in Lecture 24 Nickel has 6 bonds and 12 valence electrons even the though on the periodic table nickel already has 10 valence electrons? Also do you know it is Nickel 2+ not 10+? How do you know how many ligands need to be made for it to be the most stable?

Marisa Gaitan 2D
Posts: 107
Joined: Wed Sep 30, 2020 9:47 pm
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Re: Number of Ligands?

Postby Marisa Gaitan 2D » Wed Nov 25, 2020 2:37 pm

During today's (11/25) lecture, Lavelle specified that we only need to know the oxidation states for s and p block elements. He said that d block elements vary but you can find the oxidation state by looking at the bonds it forms with other charged atoms. So in lecture, his example with [Ni(NH3)4Cl2] Ni must be 2+ because the two Cl atoms have -1 charges each. As for the number of ligands, I don't know if there is a way to know how many, and I don't know if we will have to know this, but I hope this answered part of your question.

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