Chapter 23: Q52 P (page 1059)
What does the ending rue signify in a complex ion name?
Short Answer
In naming complex ions, metals ending in -ate signify that the complex ion is an anion because it has an overall negative charge.
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Chapter 23: Q52 P (page 1059)
What does the ending rue signify in a complex ion name?
In naming complex ions, metals ending in -ate signify that the complex ion is an anion because it has an overall negative charge.
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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
Why is chromium so useful for decorative electroplating?
Describe the makeup of a complex ion, including the nature of the ligands and their interaction with the central metal ion. Explain how a complex ion can be positive or negative and how it occurs as part of a neutral coordination compound.
Werner prepared two compounds by heating a solution ofwith triethyl phosphine, which is an excellent ligand for . The two compounds gave the same analysis: , , , , and . Write formulas, structures, and systematic names for the two isomers.
In what order are the metal ion and ligands given in the name of a complex ion?
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