PIERRE - Lesson 3: lonic Compounds Lewis Dot Structures (mon) HOW DOES ELECTRON CONFIGURATION CHANGE WHEN AN IONIC BOND FORMS? Before electron transfer After electron transfer Na + •Cl: = Na %3D Electron Na: 2-8-1 CI: 2-8-7 Na*: 2-8 Cr: 2-8-8 Configuration Type your answer to the question on top--> MO

PIERRE - Lesson 3: lonic Compounds Lewis Dot Structures (mon) HOW DOES ELECTRON CONFIGURATION CHANGE WHEN AN IONIC BOND FORMS? Before electron transfer After electron transfer Na + •Cl: = Na %3D Electron Na: 2-8-1 CI: 2-8-7 Na*: 2-8 Cr: 2-8-8 Configuration Type your answer to the question on top--> MO

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter9: Chemical Bonds

Section: Chapter Questions

Problem 9.105QE

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Similar questions

Use the data in Table 3.1 to plot the logarithm of ionization energy versus the number of electrons removed for Be. Describe the electronic structure of the Be atom.
Use the data in Figure 3.11 and Table 3.2 to calculate the energy changes (E) for the following pairs of reactions: (a) Na(g)+I(g)Na+(g)+I(g) Na(g)+I(g)Na(g)+I+(g) (b) Rb(g)+Br(g)Rb+(g)+Br(g) Rb(g)+Br(g)Rb(g)+Br+(g) Explain why Na+I and Rb+Br form in preference to NaI+ and RbBr+ .
The percent ionic character of a bond can be approximated by the formula 16+3.52 , where is the magnitude of the difference in the electronegativities of the atoms (see Fig. 3.18). Calculate the percent ionic character of HF, HCl, HBr, HI, and CsF, and compare the results with those in Table 3.7.
7.30 The bond in HF is said to be polar, with the hydrogen carrying a partial positive charge. For this to be true, the hydrogen atom must have less than one electron around it. Yet the Lewis dot structure of HF attributes two electrons to hydrogen. Draw a picture of the electron density distribution for HF and use it to describe how the hydrogen atom can carry a partial positive charge. How can these two models of the HF bond (the electron density and the Lewis structure) seem so different and yet describe the same thing?
Sketch a graph of the potential energy of two atoms as a function of the distance between them. On your graph, indicate how bond energy and bond distance are defined.
Use the data in Table 3.1 to plot the logarithm of ionization energy versus the number of electrons removed for Ne. Describe the electronic structure of the Ne atom.
At large interatomic separations, an alkali halide molecule MX has a lower energy as two neutral atoms, M+X ; at short separations, the ionic form (M+)(X) has a lower energy. At a certain distance, Rc , the energies of the two forms become equal, and it is near this distance that the electron will jump from the metal to the halogen atom during a collision. Because the forces between neutral atoms are weak at large distances, a reasonably good approximation can be made by ignoring any variation in potential V(R) for the neutral atoms between Rc and R= . For the ions in this distance range, Rc is dominated by their Coulomb attraction. (a) Express Rc for the first ionization energy of the metal M and the electron affinity of the halogen X. (b) Calculate Rc for LiF, KBr, and NaCl using data fromAppendix F.
Which of the following statements is false concerning bonding? Elements with extremely different electronegativities tend to form ionic bonds with each other. In an N—O bond. electron density is greater near the O atom. An N—O bond is an example of a polar covalent band. In general, chemical bonds form to minimize energy. The bond in KBr is formed by sharing electrons.
For each pair of bonds, predict which is the shorter. (a) SiN or PO (b) SiO or CO (c) CF or CBr (d) The C=C or the CN bond in acrylonitrile, H2C=CHCN
The compound oxygen difluoride is quite reactive, giving oxygen and HF when treated with water: OF2(g) + H2O(g) O2(g) + 2 HF(g) rH = 318 kl/mol-rxn Using bond dissociation enthalpies, calculate the bond dissociation enthalpy of the OF bond in OF2.
7.53 How do sigma and pi bonds differ? How are they similar?
7.97 Consider the structure shown below for as well as any other important resonance structures. (a) What is the expected O—N—O bond angle in this structure? (b) The molecule contains N—O bonds of two different lengths. How many sborter N—O bonds would be present?