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Chemistry: An Atoms First Approach

2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243

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BuyFindarrow_forward

Chemistry: An Atoms First Approach

2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243
Chapter 20, Problem 26E
Textbook Problem
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What is the electron configuration for the transition metal ion(s) in each of the following compounds?

a. (NH4)2[Fe(H2O)2Cl4]

b. [Co(NH3)2(NH2CH2CH2NH2)2]I2

c. Na2[TaF7]

d. [Pt(NH3)4I2][PtI4]

Pt forms +2 and +4 oxidation states in compounds.

Interpretation Introduction

Interpretation: The electron configuration of metal ion in each given complex compound is to be stated.

Concept introduction: Valence electrons are filled in four principal orbitals according to the energy levels. The four orbitals are s,p,d and f .

The metals from group 3-12 are known as first row transition metals. The general form of valence electron configuration of these metals is,

[Nobelgas]nfxndynsz

The distribution of electrons among different orbitals is given by electron configuration. When an element loses an electron, a positive charge is accumulated on it, whereas when an element gains an electron, negative charge is accumulated on it.

Explanation of Solution

EXPLANATION

(a)

To write: The electron configuration of metal ion in (NH4)2[Fe(H2O)2Cl4] .

The metals from group 3-12 are known as first row transition metals. The general form of valence electron configuration of these metals is,

[Nobelgas]nfxndynsz

Where,

  • n is the shell of principal orbital.
  • x is the number of electrons in f orbital.
  • y is the number of electrons in d orbital.
  • z is the number of electrons in s orbital.

In the complex compound (NH4)2[Fe(H2O)2Cl4] , the metal ion is Fe2+ .

Iron is a group 8 element. The atomic number of iron (Fe) is 26 and its electronic configuration is,

[Ar]3d64s2

It loses two electrons to acquire two positive charges and becomes Fe2+ . The electronic configuration of Fe2+ is,

Fe2+=Fe2e

Substitute the electron configuration of Fe in the above equation.

Fe2+=Fe2e=[Ar]3d64s22e=[Ar]3d6

(b)

To write: The electron configuration of metal ion in [Co(NH3)2(NH2CH2CH2NH2)]I2 .

In the complex compound [Ag(NH3)2]Cl , metal ion is Co2+ .

Cobalt is a group 9 element. The atomic number of cobalt (Co) is 27 and its electronic configuration is,

[Ar]3d74s2

It loses two electrons to acquire two positive charges and becomes Co2+ . The electronic configuration of Co2+ is,

Co2+=Co2e

Substitute the electron configuration of Co in the above equation.

Co2+=Co2e=[Ar]3d74s22e=[Ar]3d7

 (c)

To write: The electron configuration of metal ion in Na2[TaF7]

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Chapter 20 Solutions

Chemistry: An Atoms First Approach
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Ch. 20 - You isolate a compound with the formula PtCl4 ...Ch. 20 - Both Ni(NH3)42+ and Ni(SCN)42 have four ligands....Ch. 20 - Which is more likely to be paramagnetic, Fe(CN)64...Ch. 20 - A metal ion in a high-spin octahedral complex has...Ch. 20 - What is the lanthanide contraction? How does the...Ch. 20 - Four different octahedral chromium coordination...Ch. 20 - Figure 20-17 shows that the cis isomer of...Ch. 20 - A certain first-row transition metal ion forms...Ch. 20 - Oxalic acid is often used to remove rust stains....Ch. 20 - For the following crystal field diagrams, label...Ch. 20 - CoCl42 forms a tetrahedral complex ion and...Ch. 20 - The following statements discuss some coordination...Ch. 20 - When concentrated hydrochloric acid is added to a...Ch. 20 - Tetrahedral complexes of Co2+ are quite common....Ch. 20 - Which of the following ligands are capable of...Ch. 20 - Compounds of copper(II) are generally colored, but...Ch. 20 - Compounds of Sc3+ are not colored, but those of...Ch. 20 - Almost all metals in nature are found as ionic...Ch. 20 - What causes high-altitude sickness, and what is...Ch. 20 - Why are CN and CO toxic to humans?Ch. 20 - Write electron configurations for the following...Ch. 20 - Write electron configurations for the following...Ch. 20 - Write electron configurations for each of the...Ch. 20 - Write electron configurations for each of the...Ch. 20 - What is the electron configuration for the...Ch. 20 - What is the electron configuration for the...Ch. 20 - Molybdenum is obtained as a by-product of copper...Ch. 20 - Titanium dioxide, the most widely used white...Ch. 20 - When 6 M ammonia is added gradually to aqueous...Ch. 20 - When an aqueous solution of KCN is added to a...Ch. 20 - Consider aqueous solutions of the following...Ch. 20 - A coordination compound of cobalt(III) contains...Ch. 20 - Name the following complex ions: a. b. c.Ch. 20 - Name the following complex ions. a. Ru(NH3)5Cl2+...Ch. 20 - Name the following coordination compounds. a....Ch. 20 - Name the following coordination compounds. a....Ch. 20 - Give formulas for the following. a. potassium...Ch. 20 - Give formulas for the following complex ions. a....Ch. 20 - Draw geometrical isomers of each of the following...Ch. 20 - Draw structures of each of the following. a....Ch. 20 - The carbonate ion (CO32) can act as either a...Ch. 20 - Amino acids can act as ligands toward transition...Ch. 20 - How many bonds could each of the following...Ch. 20 - BAL is a chelating agent used in treating heavy...Ch. 20 - Draw all geometrical and linkage isomers of...Ch. 20 - Draw all geometrical and linkage isomers of square...Ch. 20 - Acetylacetone, abbreviated acacH, is a bidentate...Ch. 20 - Draw all geometrical isomers of Pt(CN)2Br2(H2O)2....Ch. 20 - Match the crystal field diagrams given below with...Ch. 20 - Match the crystal field diagrams given below with...Ch. 20 - Draw the d-orbital splitting diagrams for the...Ch. 20 - Draw the d-orbital splitting diagrams for the...Ch. 20 - The CrF64 ion is known to have four unpaired...Ch. 20 - The Co(NH3)63+ ion is diamagnetic, but Fe(H2O)62+...Ch. 20 - How many unpaired electrons are in the following...Ch. 20 - The complex ion Fe(CN)63 is paramagnetic with one...Ch. 20 - Rank the following complex ions in order of...Ch. 20 - The complex ion Cu(H2O)62+ has an absorption...Ch. 20 - The following test tubes each contain a different...Ch. 20 - Consider the complex ions Co(NH3)63+, Co(CN)63,...Ch. 20 - The wavelength of absorbed electromagnetic...Ch. 20 - The complex ion NiCL42 has two unpaired electrons,...Ch. 20 - How many unpaired electrons are present in the...Ch. 20 - The complex ion PdCl42is diamagnetic. Propose a...Ch. 20 - A blast furnace is used to reduce iron oxides to...Ch. 20 - Use the data in Appendix 4 for the following. a....Ch. 20 - Iron is present in the earths crust in many types...Ch. 20 - What roles do kinetics and thermodynamics play in...Ch. 20 - Silver is sometimes found in nature as large...Ch. 20 - One of the classic methods for the determination...Ch. 20 - Acetylacetone (see Exercise 43, part a),...Ch. 20 - The compound cisplatin, Pt(NH3)2Cl2, has been...Ch. 20 - Use standard reduction potentials to calculate ,...Ch. 20 - Until the discoveries of Alfred Werner, it was...Ch. 20 - Draw all the geometrical isomers of...Ch. 20 - A compound related to acetylacetone is...Ch. 20 - Would it be better to use octahedral Ni2+...Ch. 20 - Name the following coordination compounds. a....Ch. 20 - give formulas for the following. a....Ch. 20 - The complex ion Ru(phen)32+ has been used as a...Ch. 20 - Carbon monoxide is toxic because it binds more...Ch. 20 - For the process Co(NH3)5Cl2++ClCO(NH3)4Cl2++NH3...Ch. 20 - In which of the following is(are) the electron...Ch. 20 - Which of the following molecules exhibit(s)...Ch. 20 - Which of the following ions is( are) expected to...Ch. 20 - The following table indicates the number of...Ch. 20 - Which of the following crystal field diagram(s)...Ch. 20 - Which of the following statement(s) is( are) true?...Ch. 20 - Consider the following complex ion, where A and B...Ch. 20 - Consider the pseudo-octahedral complex ion of...Ch. 20 - Consider the following data: where en =...Ch. 20 - Henry Taube, 1983 Nobel Prize winner in chemistry,...Ch. 20 - Chelating ligands often form more stable complex...Ch. 20 - Qualitatively draw the crystal field splitting of...Ch. 20 - Qualitatively draw the crystal field splitting for...Ch. 20 - Sketch a d-orbital energy diagram for the...Ch. 20 - Sketch and explain the most likely crystal field...Ch. 20 - The ferrate ion, FeO42, is such a powerful...Ch. 20 - Ammonia and potassium iodide solutions are added...Ch. 20 - a. In the absorption spectrum of the complex ion...Ch. 20 - There are three salts that contain complex ions of...

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