?Evidence for the additional stabilization of certain electron configurations comes from

Chapter 10, Problem 135

(choose chapter or problem)

Evidence for the additional stabilization of certain electron configurations comes from the experimental lattice energies of the metal fluorides, \(MF_{2}\). The first figure below plots lattice energy for the 2+ metal cations for period 4 elements. The figure that follows plots the ionic radii of the 2+ metal cations of period 4 elements versus atomic number.

Use the information provided in the figures to answer the following questions:

a. Explain the general trend in lattice energy.

b. Is there a correlation between ionic radius and lattice energy? Explain.

c. What could account for the decrease in lattice energy between \(CrF_{2}\) and \(MnF_{2}\)?

d. Which has the higher lattice energy: \(VF_{2} or \(VCl_{2}\) ? Explain.

Text Transcription:

MF_2

CrF_2

MnF_2

VF_2

VCl_2