Consider the complex compound, aminotricyanoethylenediamminecobaltate(II) chloride. (a) write out the structural formula of the compound (b) state the shape and give the coordination number of the central metal ion (c) write the spdf electronic configuration of the central metal ion.

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(iv) Consider the complex compound, aminotricyanoethylenediaminecobaltate(II) chloride

• Clarification on Naming: The name "cobaltate(II)" indicates that the central metal ion is Cobalt in the +2 oxidation state and that the complex itself is an anion. However, "chloride" typically refers to an anionic counter-ion, which would imply a cationic complex. This is a contradiction. We will proceed by assuming the complex ion is correctly named as "aminotricyanoethylenediaminecobaltate(II)", meaning it is an anion with Cobalt in the +2 oxidation state. The "chloride" part of the name is inconsistent with this interpretation, so we will treat the complex as the anion