Exam 20: Transition Elements and Coordination Chemistry

The complex cis-[CoCl(NH₃)(NH₂CH₂CH₂NH₂)₂]²⁺ was resolved into optical isomers in 1911 by Alfred Werner,demonstrating the octahedral geometry of the ion.Name this complex ion.

What is the ground-state electron configuration for the element nickel (Z = 28)?

How many unpaired electrons are present in the high spin form of the [CoF₆]^3- complex and what metal orbitals are used in bonding?

Which one of the following objects is chiral?

In order to form a neutral compound,hexafluoroaluminate would require

Which of the following can function as a chelating agent?

Which ion has cis and trans isomers?

What statement is inconsistent with the chemistry of copper?

What statement is inconsistent with the crystal field theory of tetrahedral complexes?

For transition elements,which of the following occurs as the effective nuclear charge increases?

The second transition series metals are shown below. -Which has the largest atomic radius?

-Which of the above are monodentate ligands?

Which of the following chromium species is the strongest acid?

What is the highest possible oxidation state for vanadium?

-Which of the above are bidentate ligands?

Write the chemical formula for aquabromobis(ethylenediamine)chromium(III)chloride.

The color exhibited by coordination compounds is usually due to the absorption of light by a d-electron,resulting in the promotion of the d-electron from its ground-state d-orbital to a higher energy orbital.The first transition series element expected to have a colorless aqueous solution M²⁺ ion is ________.

The number of unpaired electrons in Co(NH₃)₆³⁺ is ________.

-Using the above schematic of an artist's color wheel,determine the color seen if a substance absorbs red and yellow light.

What is the characteristic outer electron configuration for transition elements?