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Which neutral atom is isoelectronic with each of the following ions? Ga3+, Zr4+, Mn7+, I−, Pb2+.
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Ch.7 - Periodic Properties of the Elements
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232
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TOC.tableOfContents
- Ch.1 - Introduction: Matter, Energy, and Measurement177
- Ch.2 - Atoms, Molecules, and Ions231
- Ch.3 - Chemical Reactions and Reaction Stoichiometry216
- Ch.4 - Reactions in Aqueous Solution189
- Ch.5 - Thermochemistry175
- Ch.6 - Electronic Structure of Atoms168
- Ch.7 - Periodic Properties of the Elements150
- Ch.8 - Basic Concepts of Chemical Bonding177
- Ch.9 - Molecular Geometry and Bonding Theories200
- Ch.10 - Gases179
- Ch.11 - Liquids and Intermolecular Forces113
- Ch.12 - Solids and Modern Materials154
- Ch.13 - Properties of Solutions157
- Ch.14 - Chemical Kinetics199
- Ch.15 - Chemical Equilibrium128
- Ch.16 - Acid-Base Equilibria164
- Ch.17 - Additional Aspects of Aqueous Equilibria163
- Ch.18 - Chemistry of the Environment105
- Ch.19 - Chemical Thermodynamics164
- Ch.20 - Electrochemistry171
- Ch.21 - Nuclear Chemistry122
- Ch.22 - Chemistry of the Nonmetals82
- Ch.23 - Transition Metals and Coordination Chemistry79
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry16
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232Non è quello che usi tu?Cambia libro di testo
Capitolo 7, Problema 29
Use data from Appendix C, Figure 7.10, and Figure 7.12 to calculate the lattice energy of RbCl.
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Identify the Born-Haber cycle for RbCl, which involves the following steps: sublimation of Rb, ionization of Rb, dissociation of Cl2, electron affinity of Cl, and formation of RbCl from gaseous ions.
Write the equation for the formation of RbCl from its elements in their standard states: \( \text{Rb(s)} + \frac{1}{2} \text{Cl}_2(g) \rightarrow \text{RbCl(s)} \).
Use the enthalpy of sublimation for Rb to convert solid Rb to gaseous Rb: \( \text{Rb(s)} \rightarrow \text{Rb(g)} \).
Use the ionization energy of Rb to convert gaseous Rb to \( \text{Rb}^+ \): \( \text{Rb(g)} \rightarrow \text{Rb}^+(g) + e^- \).
Use the electron affinity of Cl to convert gaseous Cl to \( \text{Cl}^- \): \( \text{Cl}(g) + e^- \rightarrow \text{Cl}^-(g) \).
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Lattice Energy
Lattice energy is the amount of energy released when gaseous ions combine to form an ionic solid. It is a measure of the strength of the forces between the ions in an ionic compound. Higher lattice energy indicates stronger ionic bonds, which typically results in higher melting and boiling points for the compound.
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00:49
Lattice Energy
Born-Haber Cycle
The Born-Haber cycle is a thermodynamic cycle that relates the lattice energy of an ionic compound to other energy changes involved in its formation. It includes steps such as ionization energy, electron affinity, and sublimation energy, allowing for the calculation of lattice energy using Hess's law. This cycle is essential for understanding how lattice energy can be derived from other measurable quantities.
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03:49Born Haber Cycle
Ionic Radii
Ionic radii refer to the effective size of an ion in a crystal lattice. The size of the ions affects the distance between them, which in turn influences the lattice energy. Smaller ions can pack more closely together, leading to stronger electrostatic attractions and higher lattice energies, while larger ions result in weaker attractions and lower lattice energies.
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03:56Ranking Ionic Radii
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Identify each statement as true or false: (b) Li+ is smaller than Li.
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Domanda del libro di testo
Some ions do not have a corresponding neutral atom that has the same electron configuration. For each of the following ions, identify the neutral atom that has the same number of electrons and determine if this atom has the same electron configuration. (a) CI−, (b) Sc3+, (c) Fe2+, (d) Zn2+, (e) Sn4+.
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Domanda del libro di testo
Identify each statement as true or false: (c) Cl- is bigger than I-.
Domanda del libro di testo
Consider the isoelectronic ions F- and Na+. (b) Using Equation 7.1 and assuming that core electrons contribute 1.00 and valence electrons contribute 0.00 to the screening constant, S, calculate Zeff for the 2p electrons in both ions.
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