Chapter 23: Q53 P (page 1059)
In what order are the metal ion and ligands given in the name of a complex ion?
In naming complex ions, the ligands are arranged in alphabetical order, then followed by the metal ion and its corresponding charge enclosed in parentheses().
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The metal ion in platinum(IV) complexes, like that in cobalt(III) complexes, has a coordination number of 6 and often has ions and molecules as ligands. For the traditional (before the work of Werner) formulasand localid="1663359663004" ,(a) give the modern formula and charge of the complex ion, and(b) predict the moles of ions per mole of compound dissolved and moles of AgCl formed with excess
Only a few lanthanides show an oxidation state other than +3. Two of these, europium (Eu) and terbium (Tb), are found near the middle of the series, and their unusual oxidation states can be associated with a half-filled fsubshell.
(a) Write the electron configurations of Eu2+, Eu3+, and Eu4+. Why is Eu2+ a common ion, whereas Eu4+ is unknown?
(b) Write the electron configurations of Tb2+, Tb3+, and Tb4+. Would you expect Tb to show a +2 or a +4 oxidation state? Explain
What are the charge and coordination number of the central metal ion(s) in each compound of Problem 23.56?
Criticize and correct the following statement: strong-field ligands always give rise to low-spin complexes.
What is the coordination number of a metal ion in a complex ion? How does it differ from oxidation number?
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