2a. What is the coordination number of the Au atom in K[Au(CN)2(SCN)2]? E (4)

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science chemistry

Answer 1

Answer #1

Answer -

K[Au(CN)₂(SCN)₂]

Coordination numbers of Au = ?

K[Au(CN)₂(SCN)₂] $\rightleftharpoons$ K⁺ + [Au(CN)₂(SCN)₂]^-

Coordination Number is the number of atoms or ions surrounding the central atom.

In [Au(CN)₂(SCN)₂]^- , 4 ions are present around the central atom i.e. 2 of CN^- and 2 of SCN^-

So, the coordination number of Au is 4. [Answer]

Answer 2

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